South Korean Midong elementary school students wearing gas masks take shelter during a civil defense drill against possible North Korea's attack at a subway station, in Seoul, South Korea, Tuesday, March 15, 2011. North Korea told a Russian envoy that it is willing to discuss its newly disclosed uranium enrichment program if long-stalled nuclear disarmament talks resume, state media reported Tuesday.
A woman wears layers of blankets and gloves to stay warm at a makeshift shelter in Ofunato, Iwate Prefecture, northern Japan, Tuesday, March 15, 2011, four days after a powerful earthquake-triggered tsunami hit Japan's north east coast.
Employees of a company react at the place where their company was used to be located, in Minamisanriku, Miyagi, northern Japan, Tuesday, March 15, 2011, following Friday's massive earthquake and the ensuing tsunami. Their colleagues and the company's president are still missing.
Traders work on the floor of the New York Stock Exchange, Tuesday, March 15, 2011.
Fireworks light up the BT telecom tower in central London to celebrate 500 days to go till the start of the London 2012 Olympic Games, Tuesday, March, 15, 2011.
The icebreaker "Mudyug" leads the bulk carrier "Federal Danube," as men fish in the frozen Gulf of Finland, some 25 miles west of St. Petersburg, Russia, Tuesday, March 15, 2011. Icebreakers have been called in to free dozens of ships that have been trapped in ice in the Gulf, which has not seen such thick ice since 1992, according to the federal agency.
Canadian musician Justin Bieber, checks the hair of the new waxwork figure of himself, at Madame Tussaud's, in London, Tuesday, March. 15, 2011.
Albany team member Tiger Woods, right, tees off on the seventh hole in front of a large mural during the second day of the Tavistock Cup golf tournament, in Windermere, Fla., Tuesday, March 15, 2011.
Protesters rally against Gov. Rick Snyder's proposed tax on retirement income Tuesday, March 15, 2011, outside the Michigan Capitol, in Lansing, Mich.
A student arranges pictures of President Barack Obama along with El Salvadoran and U.S. flags to be handed out at the United States of America School Center, in Comasagua, El Salvador, Tuesday, March 15, 2011. The school's students will attend the welcoming ceremony for Obama on March 22.
US Secretary of State Hillary Clinton and Egyptian Foreign Minister Nabil al-Arabi conduct a press conference, on Tuesday, March 15, 2011, inside Tahrir Palace, in Cairo. Clinton was pressing Egypt's transitional leaders Tuesday to follow through on pledges for democratic reform after the ouster of the country's longtime autocratic president in a popular revolt.