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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Cambodia reports sixth bird flu death this year






PHNOM PENH: A three-year-old Cambodian girl has died from bird flu, bringing the country's toll from the deadly virus to six so far this year, the World Health Organisation said on Wednesday.

The girl, from the southern province of Kampot, died in a children's hospital in the capital Phnom Penh, the WHO said in a joint statement with the Cambodian health ministry.

Tests confirmed she had contracted the H5N1 strain of avian influenza and "the girl had a history of coming into contact with poultry (in her village) prior to becoming sick", it added.

Cambodian Health Minister Mam Bunheng said in the statement that "H5N1 remains a serious threat to the health of Cambodians, especially children".

The country has recorded 28 cases of H5N1 since 2003, with all but three of them proving fatal.

Four Cambodians, including a 17-month-old girl, died from the strain last month and a five-year-old girl died last week.

The virus has killed more than 365 people worldwide since a major outbreak in 2003, according to WHO statistics.

It typically spreads from birds to humans through direct contact. But experts fear it could mutate into a form easily transmissible between humans, with the potential to trigger a pandemic.

- AFP/al



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Kerala rape case: Kurien's wife rubbishes charge against husband

PATHANMTHITTA, KERALA: Amid growing clamour for resignation of Rajya Sabha Deputy Chairman P J Kurien in the Suryanelli gangrape case, his wife has rubbished the allegations against him and said those hurling "malicious charges" never bothered to appreciate sentiments of her family.

Susan Kurien, a retired high school teacher, said in a statement here that her husband had reached home and they had supper together on the day he was alleged to have abused the victim in a guest house at distant Kumali.

"I am sure that the allegations against my husband are baseless. Myself and my two daughters firmly believe that the truth prevail in this matter," Susan said.

She said her family was deeply pained that Kurien was being haunted through media (by those levelling charges) after a span of 17 years, raising the same allegations which were found baseless by repeated investigations and judicial scrutiny.

"Those who are fighting for women's right should not forget the fact that Prof Kurien too has a family", she said.

Kurien has all along rejected the charge and opposition's demand for his resignation, saying it was a matter which had already been cleared by the Supreme Court.

The girl from Suryanelli in Idukki district was abducted in January 1996 and transported from place to place across Kerala and sexually exploited by different persons.

The victim had sent a letter to the Supreme Court last week, seeking a review of the apex court's order quashing all charges against Kurien.

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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.


___


Online:


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


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


Study: http://gucasym.org


___


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


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State of the Union: Obama Pushes Job Creation













Pursuing an aggressive and diverse early second-term agenda, President Obama turned his focus Tuesday night squarely to the economy, using his State of the Union address to unveil new government initiatives aimed at creating jobs.


The defining duty of the new Congress and new administration is to "reignite the true engine of America's economic growth -- a rising, thriving middle class," Obama said Tuesday night from the House chamber.


"That must be the North Star that guides our efforts," he said.


Obama's proposals had a familiar ring, including re-packaged economic ideas but also offering several bold new measures aimed at boosting the middle class.


None of the proposals would add to the deficit "by a single dime," Obama pledged, with costs offset by savings carved out in the budget and from money saved from ending two wars.


"It's not a bigger government we need, but a smarter government that sets priorities and invests in broad-based growth," Obama said.


For the first time as president, Obama called for raising the minimum wage from $7.25 to $9.00 an hour by 2015. He proposed to ensure future increases by indexing the minimum wage to inflation.


He proposed a national goal of universal pre-school education, an effort to help states provide tens of thousands of low- to middle-income four-year-old children access to quality public education from an earlier age.






Charles Dharapak/Pool/AP Photo











Obama: A Rising Middle Class Should Be 'North Star' Watch Video









Obama Wants Minimum Wage: 'A Wage You Can Live On' Watch Video









Obama Announces Afghanistan Troop Withdrawal Watch Video





And, to heal the nation's crumbling roads and bridges, Obama offered a $50 billion "fix it first" infrastructure program that would prioritize repair of existing structures before building new ones.


"Every day, we should ask ourselves three questions as a nation," Obama said. "How do we attract more jobs to our shores? How do we equip our people with the skills needed to do those jobs? And how do we make sure that hard work leads to a decent living?"


Answers to those questions, the president suggested, include redoubling investments in clean energy technologies -- a step which he said would both benefit the environment and reduce U.S. dependence on foreign oil.


"For the sake of our children and our future, we must do more to combat climate change," he said.


He called for doubling the amount of renewable electricity generation in the U.S. by 2020, and announced an energy version of his "Race to the Top" education program that would give states grants for the best energy efficiency programs.


Related: 7 Things Obama Says at Every State of the Union


In tandem with his economic focus, Obama announced the withdrawal of 34,000 U.S. troops from Afghanistan by this time next year, cutting in half the current force and marking a quickened pace for the final exit of U.S. combat forces by a 2014 deadline.


There are currently 66,000 U.S. troops serving in Afghanistan. Obama has vowed to bring nearly all of them home by the end of next year, though a small contingent will likely remain to train Afghan forces and assist counterterrorism operations, officials have said.


Obama touched briefly on his recently-unveiled proposals to overhaul the nation's immigration system, expand rights for gay and lesbian Americans and curb an epidemic of gun violence.


With dozens of victims of gun violence looking on from the House gallery, including former Rep. Gabby Giffords, and families of victims from shootings at Newtown, Conn., Oak Creek, Wisc., and Aurora, Colo., Obama made an emotional plea for an up-or-down vote on his gun control plan.


"Each of these proposals deserves a vote in Congress," he said of proposed restrictions on assault-style weapons and high capacity magazines, and enhanced background checks, among other measures.


"If you want to vote no, that's your choice," he said. "But these proposals deserve a vote. Because in the two months since Newtown, more than a thousand birthdays, graduations and anniversaries have been stolen from our lives by a bullet from a gun."


Read More: President Obama's Past State of the Union Promises






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North Korea conducts third nuclear test, angering U.S., Japan


SEOUL (Reuters) - North Korea conducted its third nuclear test on Tuesday in defiance of U.N. resolutions, angering the United States and Japan and likely to infuriate its only major ally, China, and increase penalties against Pyongyang.


The North said the test had "greater explosive force" than the 2006 and 2009 tests that were widely seen as small-scale. Its KCNA news agency said it had used a "minituarized" and lighter nuclear device, indicating that it had again used plutonium which is more suitable for use as a missile warhead.


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


U.S. President Barack Obama said the test was a "highly provocative act" that hurt stability in the region and called its nuclear program a threat to U.S. and international security.


"The danger posed by North Korea's threatening activities warrants further swift and credible action by the international community. The United States will also continue to take steps necessary to defend ourselves and our allies," Obama said in a statement.


Japanese Prime Minister Shinzo Abe said the test was a "grave threat" that could not be tolerated. U.N. Secretary-General Ban Ki-moon said the test 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. It likely to be a major embarrassment for Beijing, the North's sole major economic and diplomatic ally.


"The test is hugely insulting to China, which now can be expected to follow through with threats to impose sanctions," said Mark Fitzpatrick of the International Institute for Strategic Studies think tank.


North Korea trumpeted the announcement on its state television channel to patriotic music against the backdrop of an image of its national flag.


It linked the test to its technical prowess in launching a long-range rocket in December, a move that triggered the U.N. sanctions, backed by China, that Pyongyang said prompted it to carry out Tuesday's nuclear test.


The North's ultimate aim, Washington believes, is to design an intercontinental ballistic missile capable of carrying a nuclear warhead that could hit the United States. North Korea says the program is aimed merely at putting satellites in space.


North Korea used plutonium in previous nuclear tests and prior to Tuesday there had been speculation it would use highly enriched uranium so as to conserve its plutonium stocks as testing eats into its limited supply of the material that could be used to construct a nuclear bomb.


Despite its three nuclear tests and long-range rocket tests, North Korea is not believed to be close to manufacturing a nuclear missile capable of hitting the United States.


SANCTIONS AND DIPLOMATIC FALLOUT


Japan immediately called for more sanctions against North Korea and South Korea's defense ministry said additional nuclear tests and rocket launches by the North should not be ruled out.


"This is a grave problem for our country's national security and we must be extremely concerned," Kyodo news agency quoted Japanese Defence Minister Itsunori Onodera as telling reporters.


South Korea's Yonhap news agency said Pyongyang had informed China and the United States of its plans to test on Monday, although this could not be confirmed.


When new leader Kim, now aged 30, took power after his father's death in December 2011, there were hopes the he would bring reforms and end Kim Jong-il's "military first" policies.


Instead of which, the North, 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 provocations.


"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 and regional security expert at Shanghai's Fudan University.


"It is an endless, vicious cycle."


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.


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.


Significantly, the test comes at a time of political transition in China, Japan and South Korea, and as 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. Both Abe and Xi are staunch nationalists.


The longer-term game plan from Pyongyang may be to restart talks aimed at winning food and financial aid.


Its puny economy and small diplomatic reach mean 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... - 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; Frederik Dahl in VIENNA; Michael Martina in BEIJING; Editing by Nick Macfie)



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Obama rebukes North Korea over test






WASHINGTON: US President Barack Obama said Tuesday that North Korea's "provocative" nuclear test did not make it more secure and called for "swift" and "credible" international action in response.

Obama also vowed in a written statement that Washington would remain vigilant in the face of the underground detonation by the Stalinist state and steadfast in its defense commitments to its allies in Asia.

"These provocations do not make North Korea more secure," Obama said.

"Far from achieving its stated goal of becoming a strong and prosperous nation, North Korea has instead increasingly isolated and impoverished its people through its ill-advised pursuit of weapons of mass destruction and their means of delivery."

Obama complained that the test was a "highly provocative act" that -- following the North's December 12 ballistic missile launch -- undermined regional stability and violated UN Security Council resolutions.

"The danger posed by North Korea's threatening activities warrants further swift and credible action by the international community," Obama said, ahead of an emergency meeting of the UN Security Council called for later on Tuesday.

"The United States will also continue to take steps necessary to defend ourselves and our allies," Obama said.

- AFP/ck



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Joint Parliamentary Committee questions CBI director on 2G prosecutor's removal

NEW DELHI: CBI director Ranjit Sinha was on Tuesday quizzed by Opposition members about the removal of the prosecutor in the 2G case during a meeting of the Joint Parliamentary Committee examining the scam.

Sinha is learnt to have told the Committee, chaired by PC Chacko, that the veracity of the purported taped conversations between CBI prosecutor AK Singh and Unitech Managing Director Sanjay Chandra was yet to be established.

CBI had removed Singh from the 2G spectrum case after he was caught in an alleged taped conversation discussing prosecution strategy with Chandra.

As Sinha appeared before the JPC examining the alleged irregularities in allocation of 2G spectrum, questions on the removal of Singh were first put to him by opposition members.

The CBI chief's testimony was slated as one of the last presentations to the JPC along with that of telecom secretary R Chandrashekhar.

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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.


__


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.


___


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


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North Korea Says it Has Conducted a Nuclear Test













North Korea says it has successfully tested a miniaturized nuclear device Tuesday, according to state media.


A large tremor measured at magnitude 4.9 was detected in North Korea and governments in the region scrambled to determine whether it was a nuclear test that the North Korean regime has vowed to carry out despite international protests.


Official state media said the test was conducted in a safe manner and is aimed at coping with "outrageous" U.S. hostility that "violently" undermines the North's peaceful, sovereign rights to launch satellites. Unlike previous tests, North Korea used a powerful explosive nuclear bomb that is smaller and lighter, state media reported.


President Obama called the test "a highly provocative act" in a statement Tuesday morning.


"The danger posed by North Korea's threatening activities warrants further swift and credible action by the international community. The United States will also continue to take steps necessary to defend ourselves and our allies,"Obama said.


"The United States remains vigilant in the face of North Korean provocations and steadfast in our defense commitments to allies in the region," he added.


The U.N. Security Council will hold an emergency meeting on North Korea's nuclear test later this morning.


Suspicions were aroused when the U.S. Geological Survey said it had detected a magnitude 4.9 earthquake Tuesday in North Korea.


The Comprehensive Test Ban Treaty Organization told ABC News, "We confirm that a suspicious seismic event has taken place in North Korea."










North Korea Threatens More Nuclear Tests, Warns U.S. Watch Video







"The event shows clear explosion-like characteristics and its location is roughly congruent with the 2006 and 2009 DPRK (North Korea) nuclear tests," said Tibor Toth, executive secretary of the organization.


"If confirmed as a nuclear test, this act would constitute a clear threat to international peace and security, and challenges efforts made to strengthen global nuclear disarmament and non-proliferation," Toth said in a statement on the organization's web site.


Kim Min-seok, a South Korean Defense Ministry spokesman, told reporters that North Korea informed United States and China that it intended to carry out another nuclear test, according to the AP. But U.S. officials did not respond to calls from ABC News Monday night.


The seismic force measured 6 to 7 kilotons, according to South Korea.


"Now that's an absolutely huge explosion by conventional terms. It's a smallish, but not tiny explosion by nuclear terms. It's about two-thirds the size of the bomb that the U.S. dropped on Hiroshima," James Acton, a Senior Associate at the Carnegie Endowment for International Peace, told ABC News.


North Korea threatened in January to carry out a "higher-level" test following the successful Dec. 12 launch of a long range rocket. At the time, North Korea's leader Kim Jong-Un said his country's weapons tests were specifically targeting the United States.


The suspicious tremor comes just hours before President Obama is to give the State of the Union address, and it marks the first diplomatic test in the region for new Secretary of State John Kerry.


Also, South Korea's new president, Park Geun-hye, is scheduled to be sworn in on Feb. 25. One of North Korea's biggest holidays, Kim Jong-il's birthday, falls on Feb. 16.


China, North Korea's main ally in the region, has warned North Korea it would cut back severely needed food assistance if it carried out a test. Each year China donates approximately half of the food North Korea lacks to feed its people and half of all oil the country consumes.


Both of North Korea's previous tests used a plutonium-based method for making bomb fuel. The first was deemed a failure, the second only slightly less so. If the most recent test used HEU (highly enriched uranium), a far more difficult-to-detect method of producing bomb fuel, it would be a significant and worrisome step forward for North Korea's weapons program.






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