U.S. Department of Defense Current Photos
120910-D-TT977-236
Secretary of Defense Leon E. Panetta, right, pauses after placing a wreath at the Flight 93 National Memorial during a 9/11 commemoration ceremony Sept. 10, 2012, in Shanksville, Pa. The memorial was erected to mark the crash site of United Airlines Flight 93 after terrorists hijacked four passenger aircraft Sept. 11, 2001. Two of the aircraft were deliberately crashed into the World Trade Center in New York; one was crashed into the Pentagon; the fourth crashed at the Shanksville site. Nearly 3,000 people died in the attacks. (DoD photo by Mass Communication Specialist 1st Class Chad J. McNeeley, U.S. Navy/Released)
120910-D-TT977-236
Secretary of Defense Leon E. Panetta, right, pauses after placing a wreath at the Flight 93 National Memorial during a 9/11 commemoration ceremony Sept. 10, 2012, in Shanksville, Pa. The memorial was erected to mark the crash site of United Airlines Flight 93 after terrorists hijacked four passenger aircraft Sept. 11, 2001. Two of the aircraft were deliberately crashed into the World Trade Center in New York; one was crashed into the Pentagon; the fourth crashed at the Shanksville site. Nearly 3,000 people died in the attacks. (DoD photo by Mass Communication Specialist 1st Class Chad J. McNeeley, U.S. Navy/Released)