First responders stand atop the Pentagon during the Pentagon Memorial dedication ceremony Sept. 11, 2008, at the spot where American Airlines Flight 77 crashed into the building on Sept. 11, 2001.

WASHINGTON (Sep. 11, 2008) First responders stand atop the Pentagon during the Pentagon Memorial dedication ceremony Sept. 11, 2008, at the spot where American Airlines Flight 77 crashed into the building on Sept. 11, 2001, killing 59 people aboard the flight and 125 in the building. (U.S. Air Force photo by Andy Morataya) File# 080911-F-8801M-007