Pakistani doctor Shakil Afridi, in 2010, who has faced legal troubles since he took DNA samples that helped prove Osama bin Laden was in Abbottabad. Qazi Rauf/AP hide caption

itoggle caption Qazi Rauf/AP

President Barack Obama, Vice President Joe Biden, Secretary of State Hillary Rodham Clinton and other members of his national security team as they monitored the mission that ended with the death of Osama bin Laden in May 2011. Pete Souza/White House hide caption

itoggle caption Pete Souza/White House

A man identified as Sulaiman Abu Ghaith appears in this still image taken from an undated video address. A son-in-law of Osama bin Laden who served as al Qaeda's spokesman, Abu Gaith was detained in Jordan and sent to the United States. HANDOUT/Reuters /Landov hide caption

itoggle caption HANDOUT/Reuters /Landov

President Barack Obama, Vice President Joe Biden, Secretary of State Hillary Rodham Clinton and other members of his national security team as they monitored the mission that ended with the death of Osama bin Laden in May 2011. Pete Souza/White House hide caption

itoggle caption Pete Souza/White House