Gen. John Allen (center), the top U.S. commander in Afghanistan, salutes before he observes Memorial Day by reading a letter written by an American soldier to his family before he died earlier this year, at the ISAF headquarters in Kabul, Afghanistan, Monday, May 28, 2012.

Pakistani Saima Khadim, 5, carries remains of coal that she collected from a brick factory, on the outskirts of Islamabad, Pakistan, Monday, May 28, 2012.

Activists of Nepali Congress affiliated Nepal Students union burn an effigy of Prime Minister Baburam Bhattarai as they demand his resignation in Katmandu, Nepal, Monday, May 28, 2012. Nepal sank into political turmoil Monday after lawmakers failed to agree on a new constitution, leaving the country with no legal government. The premier called new elections, but critics said he lacked the power to do so.

A fan of U.S. pop star Lady Gaga waits outside the Singapore Indoor Stadium for the Lady Gaga Born This Way Ball concert to start on Monday May 28, 2012 in Singapore. Lady Gaga will be performing 3 shows in the city-state on the 28, 29 and 31 of May.

The scene of the explosion on a busy road in downtown Nairobi, Kenya, Monday, May 28, 2012. An apparent explosion ripped through a building, full of small shops in downtown Nairobi on Monday, wounding an unknown number of people. The force of the blast ripped apart the one-story building's aluminum roof, but a high-rise building with a glass exterior right next to the blast did not appear to sustain major damage. There was no immediate word on casualties or what caused the blast.

Police officers handcuff a man who threw an egg at the vehicle of former British Prime Minister Tony Blair as he was being driven away after appearing at the Leveson inquiry at the Royal Courts of Justice in London, Monday, May 28, 2012. Blair testified Monday that he never challenged the influential British press because doing so would have plunged his administration in a drawn-out and politically damaging fight.