Key U.S. general backs keeping Afghan forces at peak strength

WASHINGTON (Reuters) - The U.S. general nominated to oversee a vast region that includes Afghanistan on Thursday backed keeping Afghan forces at a peak strength of 352,000, contrary to current plans to shrink them after NATO declares the war over next year.

General Lloyd Austin, nominated to lead the U.S. military's Central Command, said at his Senate confirmation hearing that a more robust Afghan force, while more costly, would "hedge against any Taliban mischief" following America's longest war.

"Keeping the larger-size force would certainly reassure the Afghans, it would also reassure our NATO allies that we remain committed," Austin said.

The comments came two days after President Barack Obama announced in his State of the Union address that 34,000 U.S. troops - roughly half of the current U.S. force in Afghanistan - would be withdrawn by early 2014.

Obama reassured Americans that the costly, unpopular war was coming to an end, but he left unanswered bigger questions about America's exit strategy, including how many U.S. troops would stay in the country beyond 2014 to help train and advise the Afghans and to battle remnants of al Qaeda.

Obama also did not discuss the future size of the Afghan forces, although a White House fact sheet sent out after his address noted they would remain at 352,000 until "at least" early 2015.

Austin warned the Taliban would be waiting to test them.

"You could reasonably expect that an enemy that's been that determined, that agile, will very soon after we transition begin to try to test the Afghan security forces," Austin said.

Under current plans, the United States and its NATO allies will help build up the Afghan armed forces to 352,000 personnel, a number they are approaching, but the size of the force - which the allies will continue to fund - will be trimmed to 230,000 after 2015.

ECHOES OF IRAQ

The hearing frequently moved away from questions about the Afghan war and other current events to questions about Austin's past role as commander in Iraq, when a failure to strike an immunity deal for U.S. troops led to their total withdrawal in 2011.

Obama administration officials have warned that failure to strike an immunity deal with Afghanistan would also result in a pullout, but Afghan President Hamid Karzai and U.S. officials have expressed confidence a deal can be reached.

Republicans, who have criticized Obama's drawdown strategy in Afghanistan, noted that the president would have left a much smaller force in Iraq than Austin recommended, even if a deal had been struck.

Senator John McCain of Arizona lamented the lack of a U.S. presence in Iraq.

Pressed by Republicans, Austin acknowledged that the situation in Iraq was trending in a "problematic" direction, and agreed that a continued U.S. role would have helped bolster Iraqi forces.

When it came to Afghanistan, Senator Lindsay Graham of South Carolina warned Austin that if Obama sought an insufficient force for the post-2014 mission, he would refuse to vote for funding the war effort.

"It can be as low as 9 or 10,000, that I will stand with them," Graham said.

"If they overrule the commanders and create a force that cannot in my view be successful, I cannot in good conscience vote to continue this operation."

Graham said he would vote for Austin's confirmation once Austin spoke with the former commander of the Afghan mission, General John Allen, about his recommendations to Obama and reported back to the committee about his opinion.

(Reporting by Phil Stewart; Editing by David Brunnstrom)

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Zuckerberg owns nearly a third of Facebook: US regulators

SAN FRANCISCO: Mark Zuckerberg's stake in Facebook has climbed to nearly 30 percent since the leading social network made its dismal stock market debut, according to a filing Wednesday with US regulators.

Zuckerberg owns 632.65 million Facebook shares as compared with the slightly more than 500 million he held in September when the stock's sagging price prompted a promise he would not sell any for at least a year.

Zuckerberg sold about 30 million shares when the Menlo Park, California-based social network made its stock market debut in May at an opening price of $38.

Shares slid to a low of $17.55 in September but have regained ground, trading at $28.04 at the close of trading on the Nasdaq exchange on Wednesday.

Securities and Exchange Commission filings show Zuckerberg has been building his stake Facebook, the potential of which he contends is underestimated by the market.

One SEC filing showed that Zuckerberg acquired 18 million Facebook shares in mid-December at a price of zero, indicating they were tied to his compensation as chief of the social network.

-AFP/gn

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Terror groups in Pak vow to avenge Afzal

ISLAMABAD: In a show of strength in the Pakistani capital, several banned anti-India militant groups, including the Lashkar-e-Taiba and Jaish-e-Mohammed, on Wednesday vowed to take "revenge" for the execution of Afzal Guru and step up their "jihad" in Jammu and Kashmir.

Scores of members of the groups gathered at the National Press Club for a conference organized by the United Jihad Council to pay tribute to Guru, who was hanged in a Delhi jail on Saturday for his role in the 2001 terror attack on the Indian parliament.

Chanting anti-India slogans, leaders of the LeT, JeM, Al Badr Mujahideen, Jamiatul-Mujahideen, Harkat-ul-Mujahideen and the United Jihad Council made fiery speeches in which they pledged to continue their jihad in Jammu and Kashmir and other parts of India.

This was the first time in the past four years that the banned groups organized a public gathering in the Pakistani capital though they have held low-key meetings in Rawalpindi and Lahore that were opened to sections of the local media.

Senior JeM leader Mufti Asghar said his group would take revenge against the Indian government and security forces for Guru's hanging. "We know how to take revenge and we will take revenge," he said.

United Jihad Council chief Syed Salahuddin, who also heads the Hizb-ul-Mujahideen, claimed in his address that Pakistan was silent on events in Kashmir and the hanging of Guru. The mujahideen leadership, Salahuddin claimed, believed that the Kashmir issue could be settled only by jihad as talks with India were a waste of time.

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Clues to why most survived China melamine scandal

WASHINGTON (AP) — Scientists wondering why some children and not others survived one of China's worst food safety scandals have uncovered a suspect: germs that live in the gut.

In 2008, at least six babies died and 300,000 became sick after being fed infant formula that had been deliberately and illegally tainted with the industrial chemical melamine. There were some lingering puzzles: How did it cause kidney failure, and why wasn't everyone equally at risk?

A team of researchers from the U.S. and China re-examined those questions in a series of studies in rats. In findings released Wednesday, they reported that certain intestinal bacteria play a crucial role in how the body handles melamine.

The intestines of all mammals teem with different species of bacteria that perform different jobs. To see if one of those activities involves processing melamine, researchers from the University of North Carolina at Greensboro and Shanghai Jiao Tong University gave lab rats antibiotics to kill off some of the germs — and then fed them melamine.

The antibiotic-treated rats excreted twice as much of the melamine as rats that didn't get antibiotics, and they experienced fewer kidney stones and other damage.

A closer look identified why: A particular intestinal germ — named Klebsiella terrigena — was metabolizing melamine to create a more toxic byproduct, the team reported in the journal Science Translational Medicine.

Previous studies have estimated that fewer than 1 percent of healthy people harbor that bacteria species. A similar fraction of melamine-exposed children in China got sick, the researchers wrote. But proving that link would require studying stool samples preserved from affected children, they cautioned.

Still, the research is pretty strong, said microbiologist Jack Gilbert of the University of Chicago and Argonne National Laboratory, who wasn't involved in the new study.

More importantly, "this paper adds to a growing body of evidence which suggests that microbes in the body play a significant role in our response to toxicity and in our health in general," Gilbert said.

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Ship Stranded: Love Boat to Horror Honeymoon

A Texas couple's fantasy wedding quickly turned into a nightmare honeymoon when the fire-damaged Carnival Cruise ship carrying them became stranded in the Gulf of Mexico.

Rob Mowlam, 37, and Stephanie Stevenson, 27, of Nederland, Texas, got married on the Carnival Triumph on Saturday. The four-day cruise was meant to be back to shore on Monday, but was left disabled by an engine fire on Sunday.

The ship is being slowly towed to shore and is expected to dock in Mobile, Ala., on Thursday if weather permits. The vessel is without air conditioning, many working toilets and some restaurant service. Passengers, many who are sleeping in tents on deck, have told ABC News the smell on the ship is foul.

That is the honeymoon setting for Mowlam and Stevenson.

"[Rob Mowlam] had been with his girlfriend, or fiance, for a long period of time and they just took the next step," Mowlam's brother James Mowlam III told ABCNews.com. "The captain is the king of the world when they're on the boat and he hitched them up."

James Mowlam said he was shocked when he heard about the stranded boat and the increasingly dire conditions on the ship.

"It is an atrocious scene to be subjected to," he said.

Mowlam said he has not been able to communicate with his brother, but that his father has had sporadic communication with him.

"It would be my guess that this would probably not be on anyone's great list of memorable wedding experiences," Mowlam said with a laugh. "Although, my mom told him that she was hoping they had a memorable wedding and I think this would classify as a memorable wedding experience."

Lt. Cmdr. Paul McConnell/U.S. Coast Guard/AP Photo

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The bride's brother, Justin Davis, told ABCNews.com that his sister works for a doctor's office and the cruise was a gift from the doctor to the staff.

Davis has not been able to speak to Stevenson but said that her two young sons are being cared for by her mother. He said his sister is tough and he guesses she's probably not scared.

"She might be a little aggravated at the situation, but I'd say she's [probably] handling it really well," he said.

Others on the ship do not seem to be handling the situation so well.

Elderly and disabled passengers aboard the ship are struggling to cope with the worsening conditions, according to at least one passenger.

"Elderly and handicap are struggling, the smell is gross," passenger Ann Barlow text-messaged ABC News overnight. "Our room is leaking sewage."

The head of Carnival Cruise Lines said the British-U.S.-owned company was working hard to ensure the thousands of passengers stranded on the disabled ship were as comfortable as possible while the vessel was being towed to a port in Alabama.

"I need to apologize to our guests and to our families that have been affected by a very difficult situation," Carnival Cruise Lines president and CEO Gerry Cahill said at a news conference Tuesday evening.

It was the first time since a fire erupted in Triumph's engine room Sunday, knocking out its four engines, that a company representative had spoken publicly. The Triumph, with roughly 4,200 people on board, was left bobbing like a 100,000-ton cork for more than 24 hours. Giant sea-faring tugboats then hooked up to the ship and began towing the nearly 900-foot-long ship to land.

Carnival spokeswoman Joyce Oliva told The Associated Press Tuesday that a passenger with a pre-existing medical condition was taken off the ship as a precaution. Everyone else will likely have to weather conditions such as scarce running water, no air conditioning and long lines for food.

Back on land, passenger Barlow's 11-year-old twins told ABC News Tuesday they are worried as more passengers continue to talk about living with limited power and sanitation.

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Ovation for Pope Benedict at final public mass

VATICAN CITY (Reuters) - A capacity crowd in St Peter's Basilica gave Pope Benedict a thunderous standing ovation on Wednesday at an emotional last public Mass before he resigns at the end of the month.

"Thank you. Now, let's return to prayer," the 85-year-old pontiff said, bringing an end to several minutes of applause that clearly moved him. In an unusual gesture, bishops took off their mitres in a sign of respect and a few of them wept.

One of the priests at the altar, which according to tradition rests above the tomb of St Peter, took out a handkerchief to dry his tears.

The Mass was moved to St Peter's from a venue in Rome so more people could attend. Hundreds of others waited outside.

Hours earlier in the Vatican's modern audience hall, a visibly moved Benedict tried to assure his worldwide flock, saying he was confident his decision to step down would not hurt the Church.

The Vatican, meanwhile, announced that a conclave to elect his successor would start sometime between March 15 and March 20, in keeping with Church rules about the timing of such gatherings after the papal see becomes vacant.

"Continue to pray for me, for the Church and for the future pope," he said in unscripted remarks at the start of his weekly general audience, his first public appearance since his shock decision on Monday that he will step down on February 28.

It was the first time Benedict, 85, who will retire to a convent inside the Vatican, exchanging the splendor of his 16th century Apostolic Palace for a sober modern residence, had uttered the words "future pope" in public.

Church officials are still so stunned by the move that the Vatican experts have yet to decide what his title will be and whether he will continue to wear the white of a pope, the red of a cardinal or the black of an ordinary priest.

His voice sounded strong at the audience but he was clearly moved and his eyes appeared to be watering as he reacted to the thunderous applause in the Vatican's vast audience hall, packed with more than 8,000 people.

In brief remarks in Italian that mirrored those he read in Latin to stunned cardinals on Monday he appeared to try to calm Catholics' fears of the unknown.

He message was that God would continue to guide the Church.

EXAMINATION OF CONSCIENCE

"I took this decision in full freedom for the good of the Church after praying for a long time and examining my conscience before God," he said.

He said he was "well aware of the gravity of such an act," but also aware that he no longer had the strength required to run the 1.2 billion member Roman Catholic Church, which has been beset by a string of scandals both in Rome and round the world.

Benedict said he was sustained by the "certainty that the Church belongs to Christ, who will never stop guiding it and caring for it" and suggested that the faithful should also feel comforted by this.

He said that he had "felt almost physically" the affection and kindness he had received since he announced the decision.

When Benedict resigned on Monday, the Vatican spokesman said the pontiff did not fear schism in the Church after his resignation.

Some 115 cardinals under the age of 80 will be eligible to enter a secret conclave to elect his successor.

Cardinals around the world have already begun informal consultations by phone and email to construct a profile of the man they think would be best suited to lead the Church in a period of continuing crisis.

The conservative Benedict has appointed more than half of the cardinals who will elect his successor so it is unlikely the new man will tamper with any teachings such as the ban on artificial birth control or women priests.

But many in the Church have been calling for the election of someone who they say will be a better listener to other opinions in the Church.

The likelihood that the next pope would be a younger man and perhaps a non-Italian, was increasing, particularly because of the many mishaps caused by Benedict's mostly Italian top aides.

Benedict has been faulted for putting too much power in the hands of his friend, Secretary of State Cardinal Tarcisio Bertone. Critics of Bertone, effectively the Vatican's chief administrator, said he should have prevented some papal mishaps and bureaucratic blunders.

ILL-SERVED POPE

"These scandals, these miscommunications, in many cases were caused by Pope Benedict's own top aides and I think a lot of Catholics around the world think that he was perhaps ill-served by some of the cardinals here," said John Thavis, author of a new book, The Vatican Diaries.

Benedict's papacy was rocked by crises over sex abuse of children by priests in Europe and the United States, most of which preceded his time in office but came to light during it.

His reign also saw Muslim anger after he compared Islam with violence. Jews were upset over rehabilitation of a Holocaust denier. During a scandal over the Church's business dealings, his butler was accused of leaking his private papers.

"When cardinals arrive here for the conclave ... they are going to have this on their mind, they're going to take a good hard look at how Pope Benedict was served, and I think many of them feel that the burden of the papacy that finally weighed so heavy on Benedict was caused in part by some of this in-fighting (among his administration)," Thavis told Reuters.

Vatican spokesman Father Federico Lombardi urged the faithful to remain confident in the Church and its future.

"Those who may feel a bit disorientated or stunned by this, or have a hard time understanding the Holy Father's decision should look at it in the context of faith and the certainty that Christ will support his Church," Lombardi said.

Lombardi said that on his last day in office, Benedict would receive cardinals in a farewell meeting and after February 28 his ring of office, used to seal official documents, would be destroyed just as if he had died.

(Reporting by Philip Pullella; Editing by Giles Elgood)

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17 gunmen dead in Thai military base attack

 

BANGKOK, Thailand: Scores of heavily-armed gunmen stormed a military base in unrest-plagued southern Thailand, an army spokesman said on Wednesday, in a major assault that left at least 17 militants dead.

"Some 100 fully armed militants stormed the base, where there were 60 marines," Colonel Pramote Promin, southern army spokesman, told AFP.

He said the attack, one of the most ambitious in several years of violence in Thailand's three southernmost provinces, had left at least 17 assailants dead. No military casualties were reported.

- AFP/de

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Businessmen scared to complain against tax officials

NEW DELHI: The finance ministry's plan to stamp out corruption in customs and excise departments across the country and address other grievances by appointing ombudsmen hasn't taken off with businessmen reluctant to file complaints against tax officials fearing reprisals.

S Dutt Majumdar, the ombudsman for Delhi, Haryana, Punjab, Himachal and J&K, said he was facing a peculiar problem - he was swarmed with 'verbal' complaints but no one was ready to come on record or lodge a formal case, barring a few from Delhi. He has been an indirect tax ombudsman for a year now.

"Even from Delhi, the representations are only a few. One would have been happy if this really reflected the scenario that everything is fine, and there are no grievances from trade and industry," Majumdar said.

"But that's not the real story. Some complainants have asked me whether I can act on the basis of their verbal complaints. Their apprehension is that they may face trouble in their future interactions with field officers if they lodge a written complaint," Majumdar said, indicating how some officers in field formations were actually making it difficult to bring in transparency in the system. Though he says a few cases that his office has settled there has been no such complaints he has received.

Majumdar, who retired as the chairman of Central Board of Excise and Customs, said orders and circulars issued from the top were often not implemented at the field level in their true spirit.

"The problem is compounded by lack of proper monitoring at different supervisory levels," Majumdar said. For instance, each commissionerate has a grievance redressal mechanism in place but these do not inspire confidence among people at several places, he added. Affected businessmen got relief only in places where supervisory officers were straight and proactive, he said.

The ombudsman's comments reflect the rampant corruption prevailing in the department. Last month, CBI had raided a senior official of the Directorate of Revenue Intelligence for accepting bribes. That was a rare case where an official was trapped. But, usually, those who have to interact with the department on a regular basis and have day-to-day interaction compromise as that is the convenient and easy option.

The government had in 2011 created seven positions of indirect tax ombudsmen, one each in Delhi, Bangalore, Mumbai, Kolkata, Chennai, Ahmedabad and Lucknow. However, three posts are yet to be filled.

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Officer Dies After Dorner Shootout; Cabin on Fire

The remote California mountain cabin in which fugitive ex-cop Christopher Dorner has barricaded himself in tense standoff with police is on fire, following a shootout with police in which one officer was killed and another wounded.

A single shot was heard from inside the cabin before flames and a large column of black smoke was seen rising above the snow-covered trees near Big Bear, Calif., ABC station KABC-TV in Los Angeles reported.

Dorner is a former Navy marksman and Los Angeles Police Department officer charged with murdering a police officer and suspected in the deaths of two other people, including the daughter of a former LAPD captain, earlier this month.

Dozens of local, state and federal authorities are at the scene in the San Bernardino Mountains, and have the the cabin surrounded. Dorner has sworn to kill police and their family members in a manifesto discovered online last week.

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The search for Dorner, one of the largest manhunts in recent memory, took a turn this afternoon when police received a call that a suspect resembling Dorner had broken into a home in the Big Bear area, taken hostages and stolen a car.

Police said the former cop, believed to be heavily armed and extremely dangerous, took two women hostage before stealing a car just around 12:20 p.m. PT, police said.

Los Angeles Police Department/AP Photo

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The two hostages, who were tied up by Dorner but later escaped, were evaluated by paramedics and were determined to be uninjured.

Officials say Dorner crashed the stolen vehicle and fled on foot to the cabin where he barricaded himself and exchanged fire with deputies from the San Bernardino Sheriff's Office and state Fish and Game officers.

Two deputies were wounded in the firefight and airlifted to a nearby hospital, where one died, police said. The second deputy was in surgery and was expected to survive, police said.

PHOTOS: Former LAPD Officer Suspected in Shootings

Police have sealed all roads going into the area and imposed a no-fly zone above the cabin, nestled in a wooded area that has received several inches of snow in recent days.

Four Big Bear area schools were briefly placed on lockdown.

The San Bernardino County Sheriff's Department stopped all traffic leaving the area and thoroughly searched vehicles, as SWAT team and tactical units could be seen driving toward the cabin, their sirens blaring.

Authorities say they believe Dorner may be watching reports of the standoff and have asked media not to broadcast images of police surrounding the cabin.

"If he's watching this, the message ... is: Enough is enough. It's time to turn yourself in. It's time to stop the bloodshed. It's time to let this event and let this incident be over," said Los Angeles Police Department spokesman Andy Smith, told reporters at a press conference.

Dorner faces capital murder charges that involve the killing of Riverside police officer Michael Crain, who was gunned down in an ambush last Thursday.

Since then a massive manhunt has been under way, focused primarily in the San Bernardino Mountains, but extending to neighboring states and as far away as Mexico.

A capital murder charge could result in the death penalty if Dorner is captured alive and convicted. Crain was married with two children, aged 10 and 4.

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North Korean nuclear test draws anger, including from China

SEOUL (Reuters) - North Korea conducted its third nuclear test on Tuesday in defiance of U.N. resolutions, drawing condemnation from around the world, including from its only major ally, China, which summoned the North Korean ambassador to protest.

Pyongyang said the test was an act of self-defense against "U.S. hostility" and threatened stronger steps if necessary.

The test puts pressure on U.S. President Barack Obama on the day of his State of the Union speech and also puts China in a tight spot, since it comes in defiance of Beijing's admonishments to North Korea to avoid escalating tensions.

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 of his line to rule the country, 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 it conducted in 2006 and 2009. Its KCNA news agency said it had used a "miniaturized" and lighter nuclear device, indicating it had again used plutonium, which is suitable for use as a missile warhead.

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 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 called the test a "highly provocative act" that hurt regional stability.

"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.

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 mere 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 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 official 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 colorful 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.

Suzanne DiMaggio, an analyst at the Asia Society in New York, said North Korea had embarrassed China with the test. "China's inability to dissuade North Korea from carrying through with this third nuclear test reveals Beijing's limited influence over Pyongyang's actions in unusually stark terms," she said.

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

The magnitude of the explosion was roughly twice that of the 2009 test, according to the Vienna-based Comprehensive Nuclear-Test Ban Treaty Organization. The U.S. Geological Survey said that a seismic event measuring 5.1 magnitude had occurred.

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 Pyongyang's 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 has made more progress on uranium enrichment than previously thought.

The United States uses WC-135 Constant Phoenix "sniffer" aircraft to collect samples to identify nuclear explosions. These would need to be deployed quickly to detect whether highly enriched uranium rather than plutonium was used because uranium decays to undetectable levels within a matter of days. Plutonium takes much longer to decay.

North Korea trumpeted news of the test on its state television channel to patriotic music against a backdrop of its national flag.

"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.

North Korea 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 take Tuesday's action.

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 at putting satellites in space.

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.

It used plutonium in previous nuclear tests and before Tuesday there had been speculation that it would use highly enriched uranium so as to conserve its plutonium stocks, as testing eats into its limited supply of materials to construct a nuclear bomb.

"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 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 at Shanghai's Fudan University. "It is an endless, vicious cycle."

Options for the international community appear to be in short supply. 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.

Beijing has also been concerned that tougher sanctions could further weaken North Korea's economy and prompt a flood of refugees into China.

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 achieve 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. The U.S. president will likely have to tweak his State of the Union address due to be given on Tuesday.

Japanese Prime Minister Shinzo Abe is bedding down a new government and South Korea's new president, Park Geun-hye, is preparing 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 international talks aimed at winning food and financial aid. China urged it to return to the stalled "six-party" talks on its nuclear program, hosted by China and including the two Koreas, the United States, Japan and Russia.

Its puny economy and small diplomatic reach mean that North Korea struggles to win attention on the global stage - other than through nuclear tests and attacks on South Korea, the last of which was 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," predicted 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 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 Nick Macfie, Claudia Parsons and David Brunnstrom)

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