Asian shares gain on improving sentiment, G20 eyed

TOKYO (Reuters) - Asian shares rose on improving risk sentiment while the yen steadied ahead of the weekend meeting of G20 finance and central bank officials, whose views on global growth and differences over currencies will be scrutinized by investors.

"Asian markets have extended gains with risk sentiment remaining resilient as markets continue to push to new highs. Ahead of the European open, we are calling the major bourses relatively flat with GDP numbers in focus," Stan Shamu, market strategist at IG Markets, said in a note.

Financial spreadbetters were predicting London's FTSE 100 <.ftse>, Paris's CAC-40 <.fchi> and Frankfurt's DAX <.gdaxi> would open little changed ahead of European gross domestic data. U.S. stock futures were also steady, suggesting a similarly quiet Wall Street open. <.l><.eu><.n/>

The MSCI's broadest index of Asia-Pacific shares outside Japan <.miapj0000pus> extended gains, rising 0.6 percent as its materials sector <.mispjmt00pous> outperformed with a 1.6 percent increase partly on a jump in shares of top miners ahead of earnings news from Rio Tinto .

Australian shares rose 0.7 percent to their highest since September 2008, as a strong earnings season and receding fears about European and U.S. debt woes bolstered investor sentiment.

South Korean shares <.ks11> were flat after Wednesday's three-week closing high and biggest daily percentage gain since January 2 when investors cheered a pause in the yen's decline.

Market reaction was muted after monetary policy decisions from South Korea and Japan during Thursday's sessions.

The Bank of Korea held interest rates steady for a fourth straight month as expected, as global economies show signs of improvement and domestic inflation remains low. But the decision was not unanimous, its governor told a news conference.

The Bank of Japan also kept monetary policy steady and upgraded its economic assessment, as recent falls in the yen and signs of a pick-up in global growth give it some breathing space after expanding stimulus just a month ago.

A pause in the yen's rebound positively affected Japanese equities on Thursday, with the Nikkei average <.n225> advancing 0.7 percent after Wednesday's 1 percent slump when the firming yen prompted investors to take profits on exporters. <.t/>

"Usually the BOJ doing nothing causes a bit of disappointment, but since there are concerns about the flak Japan might get at the G20 this weekend for the weakening yen, standing pat will actually be a relief to the market," said Masayuki Doshida, senior market analyst at Rakuten Securities.

Markets in China and Taiwan remain shut for the Lunar New Year holiday but Hong Kong resumed trading on Thursday.

YEN IN SPOTLIGHT

The dollar recouped earlier losses to inch up 0.1 percent to 93.49 yen after marking its highest level since May 2010 of 94.465 on Monday. The euro steadied at 125.60 yen, below its peak since April 2010 of 127.71 yen touched last week.

The yen lost nearly 20 percent against the dollar between November and early February, and more than 20 percent against the euro.

The yen began its steady fall in mid-November as expectations built for a new government to take aggressive steps to bring Japan out of years of slump. Prime Minister Shinzo Abe is pushing for strong reflationary steps, pressuring the BOJ to take unprecedented expansionary measures.

The yen's rapid depreciation, after years of sharp appreciation, has drawn some criticism from overseas, with rhetoric heating up ahead of the Group of 20 nations meeting on Friday and Saturday in Moscow.

Russian Deputy Finance Minister Sergei Storchak told reporters on Wednesday in Moscow that the yen was "definitely overvalued" and that "there are no signs" that Japan's monetary authorities were intervening on the foreign exchanges.

Yuji Saito, director of foreign exchange at Credit Agricole in Tokyo, said various interpretations this week over what the G20 may say about Japan's policy and a weak yen trend "have been used as an excuse to adjust positions ahead of the meeting, and I expect forex to be in ranges."

"Currency will be discussed but I think Russia wants the meeting to focus on broader economic issues involving emerging markets as it is the G20 gathering," he said.

Traders and analysts say 90-95 yen to the dollar appeared to be a comfortable range for now, unless upside surprises emerge in the U.S. economy or Japan quickly implements unexpectedly drastic reflationary policies, both of which will swing the dollar higher above the range.

They said the yen's upside was also capped around 87 yen, halfway between its slump from mid-November to early February.

Market reaction was muted to comments from Jack Lew, President Barack Obama's pick to run the Treasury Department, who on Wednesday said he would support a strong U.S. dollar, in line with longstanding U.S. policy.

Data published on Thursday showed Japan's economy shrank 0.1 percent in October-December from the previous quarter, falling for a third straight quarter.

U.S. crude was up 0.1 percent to $97.13 a barrel and Brent added 0.1 percent to $117.98.

London copper rose 0.2 percent to $8,240.50 a metric ton (1.1023 tons).

Gold regained some strength as recent losses attracted buying interest from Asian jewellers after the Lunar New Year break, but firmer equities could limit gains.

(Additional reporting by Joyce Lee in Seoul and Tomo Uetake in Tokyo; Editing by Eric Meijer and Richard Borsuk)

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U.S. says to take lead to contain North Korea

SEOUL (Reuters) - U.S. President Barack Obama said North Korea's third nuclear test, in defiance of U.N. resolutions, was a threat and a provocation and that the United States would lead the world in responding.

North Korea has said Tuesday's test was an act of self-defense against "U.S. hostility" and threatened stronger steps if necessary.

"Provocations of the sort we saw last night will only isolate them further, as we stand by our allies, strengthen our own missile defense, and lead the world in taking firm action in response to these threats," Obama said in his State of the Union address, delivered 24 hours after the North's test.

North Korea tested nuclear devices in 2006 and 2009. But despite the three tests and a long-range rocket launch, it is not believed to be close to manufacturing a nuclear missile capable of targeting the United States.

But Washington believes the isolated state's ultimate aim is to design an intercontinental ballistic missile capable of carrying a nuclear warhead that could reach the continental United States. North Korea says its rocket program is aimed at putting satellites in space.

The latest test has drawn condemnation from around the world, including from China which for years has been the North's only major ally.

The U.N. Security Council held an emergency meeting at which its members, including China, "strongly condemned" the test and vowed to start work on appropriate measures in response, the president of the council said.

North Korean leader Kim Jong-un, the third member of his family to rule, has presided over two long-range rocket launches and a nuclear test during his first year in power, pursuing policies that have propelled his impoverished and malnourished country closer to becoming a nuclear weapons power.

North Korea said the test had "greater explosive force" than those in 2006 and 2009. Its KCNA news agency said it had used a "miniaturised" and lighter nuclear device, indicating it had again used plutonium, which is suitable for use as a missile warhead.

EXASPERATED

China, which has shown signs of increasing exasperation with the recent bellicose tone of its reclusive neighbor, summoned the North Korean ambassador in Beijing and protested sternly, the Chinese Foreign Ministry said.

Foreign Minister Yang Jiechi said China was "strongly dissatisfied and resolutely opposed" to the test and urged North Korea to "stop any rhetoric or acts that could worsen situations and return to the right course of dialogue and consultation as soon as possible".

Analysts said the test was a major embarrassment to China, which is a permanent member of the Security Council and North Korea's sole major economic and diplomatic ally.

Obama said the test would be a setback for North Korea's economic development.

"The regime in North Korea must know that they will only achieve security and prosperity by meeting their international obligations," he said.

U.S. ambassador to the United Nations Susan Rice said Washington and its allies intended to "augment the sanctions regime" already in place due to Pyongyang's previous atomic tests. North Korea is already one of the most heavily sanctioned states in the world and has few external economic links that can be targeted.

Japanese Prime Minister Shinzo Abe said the test was a "grave threat" that could not be tolerated.

Russian Foreign Minister Sergei Lavrov urged North Korea to abandon its nuclear arms program and return to talks. NATO condemned the test as an "irresponsible act."

South Korea, still technically at war with North Korea after a 1950-53 civil war ended in a truce, also denounced the test. Obama spoke to South Korean President Lee Myung-bak on Tuesday and told him the United States "remains steadfast in its defense commitments" to South Korea, the White House said.

MAXIMUM RESTRAINT

North Korea's Foreign Ministry said the test was "only the first response we took with maximum restraint".

"If the United States continues to come out with hostility and complicates the situation, we will be forced to take stronger, second and third responses in consecutive steps," it said in a statement carried by the KCNA news agency.

North Korea - which gave the U.S. State Department advance warning of the test - often threatens the United States and its "puppet", South Korea, with destruction in colourful terms.

North Korea told the U.N. disarmament forum in Geneva that it would never bow to resolutions on its nuclear program and that prospects were "gloomy" for the denuclearization of the divided Korean peninsula because of a "hostile" U.S. policy.

The magnitude of the explosion was roughly twice that of the 2009 test, according to the Vienna-based Comprehensive Nuclear-Test Ban Treaty Organization.

U.S. intelligence agencies were analyzing the event and found that North Korea probably conducted an underground nuclear explosion with a yield of "approximately several kilotons", the Office of the Director of National Intelligence said.

Nuclear experts have described the previous two tests as puny by international standards. The yield of the 2006 test has been estimated at less than 1 kiloton (1,000 tons of TNT equivalent) and the second at some 2-7 kilotons, compared with 20 kilotons for a Nagasaki-type bomb.

Initial indications are that the test involved the latest version of a plutonium-based prototype weapon, according to one current and one former U.S. national security official. Both previous tests involved plutonium. If it turns out the test was of a new uranium-based weapon, it would show that North Korea had made more progress on uranium enrichment than previously thought.

"VICIOUS CYCLE"

When Kim Jong-un, who is 30, took power after his father's death in December 2011, there were hopes that he would bring reforms and end Kim Jong-il's "military first" policies.

Instead, North Korea, whose economy is smaller than it was 20 years ago and where a third of children are believed to be malnourished, appears to be trapped in a cycle of sanctions followed by further defiance.

"The more North Korea shoots missiles, launches satellites or conducts nuclear tests, the more the U.N. Security Council will impose new and more severe sanctions," said Shen Dingli, a professor at Shanghai's Fudan University.

"It is an endless, vicious cycle."

Options for a response from the international community appear to be few. Diplomats at the United Nations said negotiations on new sanctions could take weeks since China is likely to resist tough new measures for fear they could lead to further retaliation by the North Korean leadership.

Significantly, the test comes at a time of political transition in China, Japan and South Korea, and as Obama begins his second term.

The North's longer-term game plan may be to restart international talks aimed at winning food and financial aid. China urged it to return to the stalled "six-party" talks on its nuclear programme, hosted by China and including the two Koreas, the United States, Japan and Russia.

(Additional reporting by Jack Kim, Christine Kim and Jumin Park in SEOUL; Linda Sieg in TOKYO; Louis Charbonneau and Michelle Nichols at the UNITED NATIONS; Fredrik Dahl in VIENNA; Michael Martina and Chen Aizhu in BEIJING; Mette Fraende in COPENHAGEN; Adrian Croft, Charlie Dunmore and Justyna Pawlak in BRUSSELS; Mark Hosenball, Paul Eckert, Roberta Rampton, Tabassum Zakaria and Jeff Mason in WASHINGTON; Editing by Raju Gopalakrishnan)

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Westminster Names Affenpinscher Banana Joe Best in Show

People Pets

By Kiran Hefa & Alison Schwartz

02/12/2013 at 11:55 PM EST

Westminster has its top dog!

After two days of meticulous primping, prizes and the less-pretty realities of any spirited championship, the 137th Annual Westminster Kennel Club Dog Show came to its finale Tuesday night, declaring Affenpinscher Banana Joe the best in show.

The competition proved fur-rocious as the pint-sized, black-haired furball bested six other finalists (and 2,721 entries total) for the honor, including Old English Sheepdog Swagger, who was named the reserve best in show. It’s the first time the breed has ever taken home the top prize in Westminster history.

Earning top marks at Westminster is the latest accolade in Banana Joe's storied run. The paw-dorable pooch, who is 5 years old, has been named best in show 86 times in his career, and his Westminster win will go down as his last.

"It's all so indescribable. It's just a wonderful thing as a tribute for a small breed with such a big heart," handler Ernesto Lara said post-victory. "The plans for him now is for him to retire back home where he was born, and that's in the Netherlands."

Describing his little buddy, Lara praised the breed for its commendable qualities as a canine companion.

"An Affenpinscher is a very human-like dog," he said. "It's definitely a breed you don’t want to tame or train, in the proper sense."

"You want to befriend it," Lara continued. "Once you gain the friendship, they're loyal just like a human friend."

As for Banana Joe's big victory, "Nobody told him he's small," said Lara, "and I don't think he'll believe that."

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Study questions kidney cancer treatment in elderly

In a stunning example of when treatment might be worse than the disease, a large review of Medicare records finds that older people with small kidney tumors were much less likely to die over the next five years if doctors monitored them instead of operating right away.

Even though nearly all of these tumors turned out to be cancer, they rarely proved fatal. And surgery roughly doubled patients' risk of developing heart problems or dying of other causes, doctors found.

After five years, 24 percent of those who had surgery had died, compared to only 13 percent of those who chose monitoring. Just 3 percent of people in each group died of kidney cancer.

The study only involved people 66 and older, but half of all kidney cancers occur in this age group. Younger people with longer life expectancies should still be offered surgery, doctors stressed.

The study also was observational — not an experiment where some people were given surgery and others were monitored, so it cannot prove which approach is best. Yet it offers a real-world look at how more than 7,000 Medicare patients with kidney tumors fared. Surgery is the standard treatment now.

"I think it should change care" and that older patients should be told "that they don't necessarily need to have the kidney tumor removed," said Dr. William Huang of New York University Langone Medical Center. "If the treatment doesn't improve cancer outcomes, then we should consider leaving them alone."

He led the study and will give results at a medical meeting in Orlando, Fla., later this week. The research was discussed Tuesday in a telephone news conference sponsored by the American Society of Clinical Oncology and two other cancer groups.

In the United States, about 65,000 new cases of kidney cancer and 13,700 deaths from the disease are expected this year. Two-thirds of cases are diagnosed at the local stage, when five-year survival is more than 90 percent.

However, most kidney tumors these days are found not because they cause symptoms, but are spotted by accident when people are having an X-ray or other imaging test for something else, like back trouble or chest pain.

Cancer experts increasingly question the need to treat certain slow-growing cancers that are not causing symptoms — prostate cancer in particular. Researchers wanted to know how life-threatening small kidney tumors were, especially in older people most likely to suffer complications from surgery.

They used federal cancer registries and Medicare records from 2000 to 2007 to find 8,317 people 66 and older with kidney tumors less than 1.5 inches wide.

Cancer was confirmed in 7,148 of them. About three-quarters of them had surgery and the rest chose to be monitored with periodic imaging tests.

After five years, 1,536 had died, including 191 of kidney cancer. For every 100 patients who chose monitoring, 11 more were alive at the five-year mark compared to the surgery group. Only 6 percent of those who chose monitoring eventually had surgery.

Furthermore, 27 percent of the surgery group but only 13 percent of the monitoring group developed a cardiovascular problem such as a heart attack, heart disease or stroke. These problems were more likely if doctors removed the entire kidney instead of just a part of it.

The results may help doctors persuade more patients to give monitoring a chance, said a cancer specialist with no role in the research, Dr. Bruce Roth of Washington University in St. Louis.

Some patients with any abnormality "can't sleep at night until something's done about it," he said. Doctors need to say, "We're not sticking our head in the sand, we're going to follow this" and can operate if it gets worse.

One of Huang's patients — 81-year-old Rhona Landorf, who lives in New York City — needed little persuasion.

"I was very happy not to have to be operated on," she said. "He said it's very slow growing and that having an operation would be worse for me than the cancer."

Landorf said her father had been a doctor, and she trusts her doctors' advice. Does she think about her tumor? "Not at all," she said.

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Online:

Kidney cancer info: http://www.cancer.net/cancer-types/kidney-cancer

and http://www.cancer.gov/cancertopics/types/kidney

Study: http://gucasym.org

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Marilynn Marchione can be followed at http://twitter.com/MMarchioneAP

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Firmer yen boosts Korean shares, underpins Asia stocks

TOKYO (Reuters) - Asian shares outside of Japan rose on Wednesday, led by South Korean exporters as the yen firmed amid conflicting interpretations of G7 comments about the currency's recent weakness.

The MSCI's broadest index of Asia-Pacific shares outside Japan <.miapj0000pus> gained 0.9 percent.

Seoul shares <.ks11> outperformed with a 1.5 percent jump while Australian shares jumped 0.9 percent after record first-half earnings from the Commonwealth Bank of Australia boosted sentiment.

The Nikkei stock average <.n225> slumped 1.1 percent as the firming yen prompted investors to take profits on exporters. <.t/>

China, Taiwan and Hong Kong markets remain closed for the Lunar New Year holiday.

European markets will be mixed, with financial spreadbetters predicting London's FTSE 100 <.ftse>, Paris's CAC-40 <.fchi> and Frankfurt's DAX <.gdaxi> would open between a 0.1 percent fall and a 0.4 percent gain. U.S. stock futures were up 0.1 percent to suggest a somewhat firmer Wall Street open. <.l><.eu><.n/>

Investors continued to seek cues from currency markets before a meeting of the Group of 20 finance ministers and central bankers in Moscow on Friday and Saturday, with growing international tensions over exchange rates.

At the center of the debate is Japan, where Prime Minister Shinzo Abe's government has made it clear that it will push for aggressive policies to beat stubborn deflation through drastic monetary expansion. Anticipation of much bolder Bank of Japan monetary policy has sent the yen into a steady decline, helping boost Japanese stocks to 33-month highs.

"The Japanese stock market may have rallied too strongly on expectations alone. I don't believe the Japanese government is manipulating currency rates, but it is maybe time that an equilibrium point may be sought for the yen's level given that some other countries may see weaker currencies as beneficial to their economies," said Yuuki Sakurai, CEO at Fukoku Capital Management in Tokyo.

The yen's respite from heavy selling eased concerns for investors in South Korea.

"The main board's rebound was driven by a break in the yen's weakness, following signs that the won's strength has abated somewhat," said Lim Dong-rak, an analyst at Hanyang Securities in Seoul.

The yen rallied on Tuesday, reversing the previous day's late selloff against the dollar and euro, after an official with the Group of Seven said it is worried about excess moves in the Japanese currency.

G7 governors and ministers reaffirmed their commitment that fiscal and monetary policies would not be directed at devaluing currencies, a statement meant to reassure investors that Tokyo was not aiming to guide the yen lower with its aggressive expansion of monetary policy.

"All these comments are merely stating the obvious and are not to be taken in the context of whether they are endorsing a weaker yen or not," said Yuji Saito, director of foreign exchange at Credit Agricole in Tokyo.

"What is being said is that monetary policy should be used to achieve domestic objectives and Japan is undertaking reflationary policies, not manipulating currency rates, and the result of that is a weak yen. What is asked for from Japan is to explain its policy clearly at the G20," Saito said.

The dollar dropped 0.6 percent to 92.95 yen after marking its highest level since May 2010 of 94.465 on Monday. The euro tumbled 0.6 percent to 125.01 yen, moving further away from its highest since April 2010 of 127.71 yen touched last week.

The BOJ ends a two-day policy meeting on Thursday, with markets expecting no fresh easing steps this time. But expectations are running high that further unprecedented measures will be taken under a new BOJ regime due to start next month after the terms of current top officials end.

"So far, the yen has been weakening on expectations for a bold monetary policy, and from now, Japan has to implement actual policy to justify such expectations," said Naohiko Baba, Japan chief economist at Goldman Sachs.

The euro steadied around $1.3450, keeping overnight gains made after European Central Bank President Mario Draghi said talk of a currency war was overdone, and that Spain was on the right track toward economic recovery.

In his annual State of the Union address, U.S. President Barack Obama proposed on Tuesday to hike the minimum wage by more than 20 percent, invest $50 billion on crumbling roads and bridges and spend $15 billion on a construction jobs program in a bid to boost economic growth.

U.S. crude was up 0.1 percent to $97.60 a barrel and Brent was steady around $118.61.

Palladium extended gains to a 17-month high as supply concerns sparked speculative buying, while gold edged up on demand from jewellers.

(Additional reporting by Joyce Lee in Seoul; Editing by Eric Meijer & Kim Coghill)

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North Korea conducts third nuclear test, sparks condemnation

SEOUL (Reuters) - North Korea conducted its third-ever nuclear test on Tuesday, a move likely to anger its main ally China and increase international action against Pyongyang and its new young leader, Kim Jong-un.

U.N. Secretary-General Ban Ki-moon condemned North Korea's test, saying it was a "clear and grave violation" of U.N. Security Council resolutions.

South Korea said the size of the seismic activity indicated a nuclear explosion slightly larger than the North's two previous tests at 6-7 kilotons, although that is still relatively small. The Hiroshima bomb was around 20 kilotons.

The U.S. Geological Survey said that a seismic event measuring 5.1 magnitude had occurred on Tuesday, with North Korea later confirming the nuclear test.

"It was confirmed that the nuclear test that was carried out at a high level in a safe and perfect manner using a miniaturized and lighter nuclear device with greater explosive force than previously did not pose any negative impact on the surrounding ecological environment," KCNA said.

The test prompted the U.N. Security Council to call for an emergency meeting later on Tuesday and came as China celebrated the lunar new year, potentially increasing embarrassment for Beijing, the North's sole major economic and diplomatic ally.

"I think it will be proven to be a self-defeating and self-suffocating blunder on the part of the DPRK (Democratic People's Republic of Korea)," an Asian diplomat to the United Nations told Reuters in New York.

"They have chosen the worst timing to conduct this testing ... This will also be an open invitation to the international community to up the ante to corner the DPRK."

It may take days to ascertain whether the North used highly enriched uranium for the first time in the nuclear test, a move that would give it a second path to a nuclear weapon.

North Korea has used plutonium in previous tests and needs to conserve its stocks as testing eats into its limited supply of the material that could be used to construct a nuclear bomb.

The Vienna-based Comprehensive Nuclear-Test Ban Treaty Organization, the international atomic test monitor, said the event had hallmarks similar to the North's previous nuclear tests in 2006 and 2009.

"This act would constitute a clear threat to international peace and security, and challenges efforts made to strengthen global nuclear disarmament and non-proliferation," it said.

Japan immediately called for sanctions against North Korea whose December long-range rocket launch prompted new U.N. sanctions that Pyongyang said earlier would push it to undertake a third nuclear test.

South Korea's defense ministry said additional nuclear tests and rocket launches by the North should not be ruled out.

South Korea's Yonhap news agency said Pyongyang had informed China and the United States of its plans to test on Monday.

When new leader Kim Jong-un took office after his father's death in December 2011, there were hopes the youthful leader would bring economic reforms and end his father Kim Jong-il's "military first" policies that have seen the North declare itself a "nuclear weapons state".

Since taking office however, he has purged the military, pushed ahead with two long-range rocket launches, which critics say breach U.N. sanctions.

Tuesday's action appeared to have been timed for the run-up to February 16 anniversary celebrations of Kim Jong-il's birthday, as well as to achieved maximum international attention.

But options for the international community appear to be in short supply, as North Korea is already one of the most heavily sanctioned states on earth.

Significantly, the test comes at a time of political transition in China, Japan and South Korea, and as U.S. President Barack Obama begins his second term.

Japanese Prime Minister Shinzo Abe is bedding down a new government and South Korea's new president, Park Geun-hye, prepares to take office on February 25.

China too is in the midst of a once in a decade leadership transition to Xi Jinping, who takes office in March.

But the longer term game plan from Pyongyang may be to restart talks aimed at winning aide for its impoverished and stricken economy that is smaller than it was 20 years ago.

Its puny economy and small diplomatic reach means the North struggles to win attention on the global stage - other than through nuclear tests and attacks on South Korea, last made in 2010.

"Now the next step for North Korea will be to offer talks. They will either offer to restart six-party talks or military talks - any form to start up discussion again to bring things to their advantage," said Jeung Young-tae, senior research fellow at the Korea Institute for National Unification in Seoul.

(Additional reporting by Jack Kim, Christine Kim and Jumin Park in SEOUL; Linda Sieg in TOKYO; Louis Charbonneau at the UNITED NATIONS; Editing by Michael Perry and Paul Tait)

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It's a Girl for John Cho

Mom & Babies
Celebrity Baby Blog

02/11/2013 at 06:30 PM ET

Paul Drinkwater/NBC

Surprise: Actor John Cho is a dad again!

The Go On star and his wife welcomed a daughter recently, Cho’s rep confirms to PEOPLE exclusively.

Baby girl is the second child for the couple, who are also parents to a son. No further details are available.

Cho currently stars alongside Jason Bateman in Identity Thief and will reprise his role as Hikaru Sulu in Star Trek Into Darkness in May.

He is also well known for his roles in American Pie and the Harold and Kumar films.

– Anya Leon with reporting by Julie Jordan

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Pope shows lifetime jobs aren't always for life

The world seems surprised that an 85-year-old globe-trotting pope who just started tweeting wants to resign, but should it be? Maybe what should be surprising is that more leaders his age do not, considering the toll aging takes on bodies and minds amid a culture of constant communication and change.

There may be more behind the story of why Pope Benedict XVI decided to leave a job normally held for life. But the pontiff made it about age. He said the job called for "both strength of mind and body" and said his was deteriorating. He spoke of "today's world, subject to so many rapid changes," implying a difficulty keeping up despite his recent debut on Twitter.

"This seemed to me a very brave, courageous decision," especially because older people often don't recognize their own decline, said Dr. Seth Landefeld, an expert on aging and chairman of medicine at the University of Alabama at Birmingham.

Age has driven many leaders from jobs that used to be for life — Supreme Court justices, monarchs and other heads of state. As lifetimes expand, the woes of old age are catching up with more in seats of power. Some are choosing to step down rather than suffer long declines and disabilities as the pope's last predecessor did.

Since 1955, only one U.S. Supreme Court justice — Chief Justice William Rehnquist — has died in office. Twenty-one others chose to retire, the most recent being John Paul Stevens, who stepped down in 2010 at age 90.

When Thurgood Marshall stepped down in 1991 at the age of 82, citing health reasons, the Supreme Court justice's answer was blunt: "What's wrong with me? I'm old. I'm getting old and falling apart."

One in 5 U.S. senators is 70 or older, and some have retired rather than seek new terms, such as Hawaii's Daniel Akaka, who left office in January at age 88.

The Netherlands' Queen Beatrix, who just turned 75, recently said she will pass the crown to a son and put the country "in the hands of a new generation."

In Germany, where the pope was born, Chancellor Angela Merkel, who is 58, said the pope's decision that he was no longer fit for the job "earns my very highest respect."

"In our time of ever-lengthening life, many people will be able to understand how the pope as well has to deal with the burdens of aging," she told reporters in Berlin.

Experts on aging agreed.

"People's mental capacities in their 80s and 90s aren't what they were in their 40s and 50s. Their short-term memory is often not as good, their ability to think quickly on their feet, to execute decisions is often not as good," Landefeld said. Change is tougher to handle with age, and leaders like popes and presidents face "extraordinary demands that would tax anybody's physical and mental stamina."

Dr. Barbara Messinger-Rapport, geriatrics chief at the Cleveland Clinic, noted that half of people 85 and older in developed countries have some dementia, usually Alzheimer's. Even without such a disease, "it takes longer to make decisions, it takes longer to learn new things," she said.

But that's far from universal, said Dr. Thomas Perls, an expert on aging at Boston University and director of the New England Centenarians Study.

"Usually a man who is entirely healthy in his early 80s has demonstrated his survival prowess" and can live much longer, he said. People of privilege have better odds because they have access to good food and health care, and tend to lead clean lives.

"Even in the 1500s and 1600s there were popes in their 80s. It's remarkable. That would be today's centenarians," Perls said.

Arizona Sen. John McCain turned 71 while running for president in 2007. Had he won, he would have been the oldest person elected to a first term as president. Ronald Reagan was days away from turning 70 when he started his first term as president in 1981; he won re-election in 1984. Vice President Joe Biden just turned 70.

In the U.S. Senate, where seniority is rewarded and revered, South Carolina's Strom Thurmond didn't retire until age 100 in 2002. Sen. Robert Byrd of West Virginia was the longest-serving senator when he died in office at 92 in 2010.

Now the oldest U.S. senator is 89-year-old Frank Lautenberg of New Jersey. The oldest congressman is Ralph Hall of Texas who turns 90 in May.

The legendary Alan Greenspan was about to turn 80 when he retired as chairman of the Federal Reserve in 2006; he still works as a consultant.

Elsewhere around the world, Cuba's Fidel Castro — one of the world's longest serving heads of state — stepped down in 2006 at age 79 due to an intestinal illness that nearly killed him, handing power to his younger brother Raul. But the island is an example of aged leaders pushing on well into their dotage. Raul Castro now is 81 and his two top lieutenants are also octogenarians. Later this month, he is expected to be named to a new, five-year term as president.

Other leaders who are still working:

—England's Queen Elizabeth, 86.

—Abdullah bin Abd al-Aziz al-Saud, king of Saudi Arabia, 88.

—Sabah al-Ahmad al-Jaber al-Sabah, emir of Kuwait, 83.

—Ruth Bader Ginsburg, U.S. Supreme Court associate justice, 79.

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Associated Press writers Paul Haven in Havana, Cuba; David Rising in Berlin; Seth Borenstein, Mark Sherman and Matt Yancey in Washington, and researcher Judy Ausuebel in New York contributed to this report.

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Marilynn Marchione can be followed at http://twitter.com/MMarchioneAP

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Yen off lows vs dollar, Asian shares ease in subdued trade

TOKYO (Reuters) - The yen recovered from lows against the dollar and Tokyo stocks jumped closer to a 33-month high on Tuesday after markets took comments from a U.S. official as approval for Japan to pursue anti-deflation policies that weaken the yen.

U.S. Treasury Undersecretary Lael Brainard said on Monday the United States supports Japanese efforts to end deflation, but she noted that the G7 has long been committed to exchange rates determined by market forces, "except in rare circumstances where excess volatility or disorderly movements might warrant cooperation.

"Her (Brainard's) comments gave confidence to the market. It was surprising, and was taken as the Obama Administration giving a green light to 'Abenomics'," said Takuya Takahashi, a market analyst at Daiwa Securities.

Japan has faced some overseas criticism that it is intentionally trying to weaken the yen with monetary easing, but talk of a so-called currency war was dialled back ahead of a Group of 20 meeting in Moscow on Friday and Saturday.

G20 officials said on Monday the Group of Seven nations are considering a statement this week reaffirming their commitment to "market-determined" exchange rates.

European Central Bank council member Jens Weidmann also said the euro was not overvalued at current levels.

The dollar fell 0.4 percent to 93.94 yen after marking its highest level since May 2010 of 94.465 on Monday . The euro shed 0.6 percent to 125.68 yen after rising over 2 percent on Monday. It hit its highest since April 2010 of 127.71 yen last week.

"I think the yen's weakening is a function of (playing)catch-up," and not Japan resorting to deliberate devaluation of its currency, said Andrew Wilkinson, chief economic strategist at Miller Tabak & Co. in New York. "It's the market's way of saying:'We're convinced there is a movement afoot to reinflate Japan.'"

The yen is pressured by anticipation that Prime Minister Shinzo Abe will endorse a far more dovish Bank of Japan regime when the current leadership's term ends next month, although the BOJ is expected to refrain from taking fresh easing steps when it meets this week.

Share trading was subdued with many regional bourses shut for holidays. Encouraging trade data from China late last week was lending support to sentiment but non-Japan markets lacked momentum as investors awaited key events such as the U.S. president's State of the Union address for trading cues.

European markets are seen inching lower, with financial spreadbetters predicting London's FTSE 100 <.ftse>, Paris's CAC-40 <.fchi> and Frankfurt's DAX <.gdaxi> would open down 0.2 percent. A 0.2 percent drop in U.S. stock futures also suggested a soft Wall Street start. <.l><.eu><.n/>

The MSCI's broadest index of Asia-Pacific shares outside Japan <.miapj0000pus> fell 0.1 percent, with Australian shares closing flat ahead of corporate earnings due this week.

The weaker yen in turn hoisted the Nikkei stock average <.n225> to close 1.9 percent higher on improving earnings prospects for exporters. <.t/>

Trading resumed in Japan and South Korea but markets in Singapore, Hong Kong, mainland China, Malaysia and Taiwan remained closed.

STATE OF UNION ADDRESS

Currency and equities markets were also looking ahead to President Barack Obama's State of the Union address later on Tuesday night, for any signs of a deal to avert automatic spending cuts due to take effect March 1.

"We believe that the G20's take on currency wars, Mr. Obama's upcoming state of the union address, and data on the current condition of the U.S. economy should help markets assess where the global recovery stands and where we are heading," Barclays Capital said in a research report.

U.S. and Chinese data last week lifted the tech-focused Nasdaq Composite Index <.ixic> to a 12-year closing high and the Standard & Poor's 500 Index <.spx> to a five-year peak on Friday.

Financial markets showed a muted reaction to the news that North Korea has conducted a nuclear test.

"The test was not something that makes your heart pound as much as a pressing situation between Iran and Israel," said Kaname Gokon, research manager at brokerage Okato Shoji, referring to the threat of possible military action to prevent Iran from developing nuclear weapons.

U.S. crude futures edged down 0.1 percent to $96.92 a barrel while Brent steadied around $118.15.

Spot gold stayed near a one-month low.

(Additional reporting by Ayai Tomisawa, Lisa Twaronite and Osamu Tsukimori in Tokyo; Editing by Edwina Gibbs and Eric Meijer)

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Gunbattle rocks Gao after rebels surprise French, Malians

GAO, Mali (Reuters) - Islamist insurgents launched a surprise raid in the heart of the Malian town of Gao on Sunday, battling French and local troops in a blow to efforts to secure Mali's recaptured north.

Local residents hid in their homes or crouched behind walls as the crackle of gunfire from running street battles resounded through the sandy streets and mud-brick houses of the ancient Niger River town, retaken from Islamist rebels last month by a French-led offensive.

French helicopters clattered overhead and fired on al Qaeda-allied rebels armed with AK-47s and rocket-propelled grenades who had infiltrated the central market area and holed up in a police station, Malian and French officers said.

The fighting inside Gao was certain to raise fears that pockets of determined Islamists who have escaped the lightning four-week-old French intervention in Mali will strike back with guerrilla attacks and suicide bombings.

After driving the bulk of the insurgents from major northern towns such as Timbuktu and Gao, French forces are trying to search out their bases in the remote and rugged Adrar des Ifoghas mountains, far up in the northeast.

But with Mali's weak army unable to secure recaptured zones, and the deployment of a larger African security force slowed by delays and kit shortages, vast areas to the rear of the French forward lines now look vulnerable to guerrilla activity.

"They infiltrated the town via the river. We think there were about 10 of them. They were identified by the population and they went into the police station," said General Bernard Barrera, commander of French ground operations in Mali.

He told reporters in Gao that French helicopters had intervened to help Malian troops pinned down by the rebels, who threw grenades from rooftops.

Malian gendarme Colonel Saliou Maiga told Reuters the insurgents intended to carry out suicide attacks in the town.

SUICIDE BOMBERS

No casualty toll was immediately available. But a Reuters reporter in Gao saw one body crumpled over a motorcycle. Malian soldiers said some of the raiders may have come on motorbikes.

The gunfire in Gao erupted hours after French and Malian forces reinforced a checkpoint on the northern outskirts that had been attacked for the second time in two days by a suicide bomber.

Abdoul Abdoulaye Sidibe, a Malian parliamentarian from Gao, said the rebel infiltrators were from the MUJWA group that had held the town until French forces liberated it late last month.

MUJWA is a splinter faction of al Qaeda's North African wing AQIM which, in loose alliance with the home-grown Malian Islamist group Ansar Dine, held Mali's main northern urban areas for 10 months until the French offensive drove them out.

Late on Saturday, an army checkpoint in Gao's northern outskirts came under attack by a group of Islamist rebels who fired from a road and bridge that lead north through the desert scrub by the Niger River to Bourem, 80 km (50 miles) away.

"Our soldiers came under heavy gunfire from jihadists from the bridge ... At the same time, another one flanked round and jumped over the wall. He was able to set off his suicide belt," Malian Captain Sidiki Diarra told reporters.

The bomber died and one Malian soldier was lightly wounded, he added. In Friday's motorbike suicide bomber attack, a Malian soldier was also injured.

Diarra described Saturday's bomber as a bearded Arab.

Since Gao and the UNESCO World Heritage city of Timbuktu were retaken last month, several Malian soldiers have been killed in landmine explosions on a main road leading north.

French and Malian officers say pockets of rebels are still in the bush and desert between major towns and pose a threat of hit-and-run guerrilla raids and bombings.

"We are in a dangerous zone... we can't be everywhere," a French officer told reporters, asking not to be named.

One local resident reported seeing a group of 10 armed Islamist fighters at Batel, just 10 km (6 miles) from Gao.

OPERATIONS IN NORTHEAST

The French, who have around 4,000 troops in Mali, are now focusing their offensive operations several hundred kilometers (miles) north of Gao in a hunt for the Islamist insurgents.

On Friday, French special forces paratroopers seized the airstrip and town of Tessalit, near the Algerian border.

From here, the French, aided by around 1,000 Chadian troops in the northeast Kidal region, are expected to conduct combat patrols into the Adrar des Ifoghas mountains.

The remaining Islamists are believed to have hideouts and supply depots in a rugged, sun-blasted range of rocky gullies and caves, and are also thought to be holding at least seven French hostages previously seized in the Sahel.

The U.S. and European governments back the French-led operation as a defense against Islamist jihadists threatening wider attacks, but rule out sending their own combat troops.

To accompany the military offensive, France and its allies are urging Mali authorities to open a national reconciliation dialogue that addresses the pro-autonomy grievances of northern communities like the Tuaregs, and to hold democratic elections.

Interim President Dioncounda Traore, appointed after a military coup last year that plunged the West African state into chaos and led to the Islamist occupation of the north, has said he intends to hold elections by July 31.

But he faces splits within the divided Malian army, where rival units are still at loggerheads.

(Additional reporting by Tiemoko Diallo and Adama Diarra in Bamako; Writing by Joe Bavier and Pascal Fletcher; Editing by Kevin Liffey)

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