A man tries to cross a makeshift bridge to escape his flooded home in Nowshera, Pakistan on July 31, 2010. (REUTERS/Adrees Latif)

Pakistani Christians pray for civilians from the troubled Swat Valley in Islamabad, Pakistan, Tuesday, Feb. 17, 2009. (AP Photo/Emilio Morenatti)

A Pakistan army helicopter evacuates stranded villagers in Nowshera, Pakistan on Friday, July 30, 2010. (AP Photo/Mohammad Sajjad)

A family takes refuge on top of a mosque while awaiting rescue from flood waters in Sanawa, a town located in the Muzaffar Ghar district of Pakistan’s Punjab province on August 5, 2010. (REUTERS/Stringer)

A Pakistani child looks on as women covered with burqas from the tribal region of Bajur and Mohmand agency wait to be registered at the Jalozai refugee camp near Peshawar, Pakistan, Friday, Jan. 30, 2009. More than 200,000 people have fled the fighting in Bajur and Mohmand agency to camps in Afghanistan and Pakistan. (AP Photo/Emilio Morenatti)

A woman yells as her child is evacuated from the roof of a mosque where residents were taking refuge from flood waters in Sanawa, Pakistan on August 5, 2010. (REUTERS/Stringer)