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Republican presidential candidate former Utah Governor Jon Huntsman departs the Huckabee Forum 2, a televised event, in Charleston, South Carolina, January 14, 2012. REUTERS/Jason Reed

Austrian National Bank governor Ewald Nowotny delivers a speech during the Conference on European Economic Integration. The European Central Bank will do all it can to calm the situation after Standard & Poor's downgraded several euro zone members' debt ratings in the past week, ECB Governing Council member Ewald Nowotny said on Sunday. Calling in particular Italy's two-notch downgrade "very dramatic", he told an Austrian television panel discussion the S&P moves had created a sensitive environment in the euro zone debt crisis. REUTERS/Heinz-Peter Bader

Iran's Oil Minister Rostam Qasemi attends the opening of the 20th World Petroleum Congress in Doha. Iran warned Gulf Arab neighbors on Sunday they would suffer consequences if they raised oil output to replace Iranian crude facing an international ban. In signs of Tehran's deepening isolation over its refusal to halt nuclear activity that could yield atomic bombs, China's premier was in Saudi Arabia probing for greater access to its huge oil and gas reserves and Britain voiced confidence a once hesitant European Union would soon ban oil imports from Iran.

Pakistani Taliban chief Hakimullah Mehsud (C) sits with other millitants in South Waziristan October 4, 2009/ The leader of the Pakistani Taliban, the militant movement that poses the gravest security threat to the country, was believed killed by a U.S. drone strike, four Pakistan intelligence officials told Reuters Sunday. The officials said they intercepted wireless radio chatter between Taliban fighters detailing how Hakimullah Mehsud was killed while travelling in a convoy to a meeting in the North Waziristan tribal region near the Afghan border. REUTERS/Reuters TV

Nigerian labor unions said they would resume nationwide strikes on Monday, crippling the second largest economy in Africa, after failing to reach a compromise with the government over scrapped fuel subsidies. However, the main oil union said it would maintain the output of Africa's No. 1 crude producer, not joining walkouts for the time being, and the government said more talks would be held on Sunday despite the unsuccessful round the day before. (REUTERS)

A Confederate flag flies outside the State House in Columbia, South Carolina January 14, 2012. The state that fired the first shot in the Civil War is once again battling the U.S. government in a racially charged conflict that is drawing heated rhetoric from Republican presidential candidates. South Carolina is in a standoff with Democratic President Barack Obama's administration over a new state law that would require residents to produce a photo ID before they could vote. Federal officials say it could disproportionately keep black voters away from the polls. REUTERS/Chris Keane

Al Qaeda militants have seized a small town southeast of Yemen's capital Sanaa on Sunday in another setback to efforts to restore order after President Ali Abdullah Saleh formally handed over power following almost a year of mass protests against his rule. A police source and witnesses said the militants met little resistance from a small police force when they entered the town of Radda in al-Baydah province, 170 km (105 miles) from Sanaa, on Saturday night, seizing an ancient citadel and mosque. REUTERS/Mohamed al-Sayaghi

PepsiCo Inc said company tests of its Tropicana orange juice showed low levels of a potentially dangerous fungicide, but levels were below federal safety concerns and did not pose a health risk. The company said in a statement on Saturday it was conducting additional tests after the Food and Drug Administration announced on Wednesday that it would temporarily halt orange juice imports and remove any juice found to have dangerous amounts of the fungicide carbendazim. REUTERS/Paulo Whitaker

A group of 150 influential Christian conservative leaders on Saturday backed former Pennsylvania Senator Rick Santorum as their choice for Republican U.S. presidential nominee. The conservatives agreed to support Santorum on the third ballot in a meeting at a ranch outside Houston, Texas. REUTERS/Eric Thayer

Prominent Egyptian reform campaigner Mohamed ElBaradei talks to journalists before leaving Vienna to Cairo at the Vienna airport, January 27, 2011. ElBaradei pulled out of the race to become Egyptian president on Saturday, the Nobel Peace Prize winner saying "the previous regime" was still running the country which has been governed by army generals since Hosni Mubarak was deposed. REUTERS/Heinz-Peter Bader