People examine the rubble following an air strike near the airport in Yemen's capital Sanaa on Thursday. Saudi Arabia said it carried out bombing raids in neighboring Yemen as Houthi rebels, allied with Iran, continued their offensive in the country. Yemen's president fled the country Wednesday and was reported to be in Saudi Arabia on Thursday. Khaled Abdullah/Reuters/Landov hide caption

itoggle caption Khaled Abdullah/Reuters/Landov

FBI headquarters in Washington. An independent review says the bureau has made strides since Sept. 11 but "needs to accelerate its implementation of reforms." Pablo Martinez Monsivais/AP hide caption

itoggle caption Pablo Martinez Monsivais/AP

A cell block at the now-closed Abu Ghraib prison in Baghdad, a facility notorious for photos released in 2004 showing U.S. soldiers torturing and humiliating inmates. Karim Kadim/AP hide caption

itoggle caption Karim Kadim/AP