photo by: Associated Press

In this frame grab image taken from AP Television, President Barack Obama addresses the nation Sunday, May 1, 2011, in Washington. Osama bin Laden, the mastermind behind the Sept. 11 attacks against the United States, is dead, and the U.S. is in possession of his body, Obama announced.

photo by: AP Photo/Manuel Balce Ceneta

A crowd outside the White House in Washington, cheers Sunday, May 1, 2011, upon hearing the news that terrorist leader Osama bin Laden is dead.

photo by: AP Photo/Manuel Balce Ceneta

A crowd outside the White House in Washington, cheers Sunday, May 1, 2011, upon hearing the news that terrorist leader Osama bin Laden is dead.

photo by: AP Photo/Pablo Martinez Monsivais

President Barack Obama walks down the Cross Hall on the way to the East Room to make a televised statement on the death of Osama bin Laden from the White House in Washington, Sunday, May 1, 2011.

photo by: AP Photo/Brennan Linsley, File

In this Aug. 15, 1998 file photo, a United States Marine talks with an FBI investigator in front of the damaged U.S. Embassy in the capital Dar es Salaam, Tanzania. Osama bin Laden, leader of the al-Qaida organization behind the Sept. 11, 2001 attacks against the United States and blamed for the 1998 embassy bombings in Kenya and Tanzania, is dead, a person familiar with the situation said late Sunday.

photo by: AP Photo/U.S. Navy, File

This Oct. 12, 2000 file photo provided by the U.S. Navy shows damage sustained on the USS Cole after a suspected terrorist bomb exploded during a refueling operation in the port of Aden, Yemen. Osama bin Laden, leader of the al-Qaida organization, behind the Sept. 11, 2001, attacks against the United States and blamed for the 2000 attack on the USS Cole, is dead, and the U.S. is in possession of his body, a person familiar with the situation said late Sunday.