Damage to the Pentagon from Tuesday's terrorist attack is seen during a Congressional tour Sept. 13, 2001. Searchers received a signal from the black box of the plane that crashed at the Pentagon, officials said Thursday. Search crews will not be able to retrieve the black box at the Pentagon until they are able to enter the collapsed area of the Pentagon, where the plane's fuselage rests. (AP Photo/Susan Walsh, Pool)
Gallery: The Sept. 11, 2001, terrorist attacks
Sep. 10, 2011 @ 07:19 PM
On Tuesday, Sept. 11, terrorists hijacked airplanes and used them to destroy the Twin Towers in New York City and damage the Pentagon in Washington, D.C. One of the planes crashed in a field in rural Pennsylvania.
Excluding the 19 hijackers, the death toll stands at 2,998 with 24 more presumed dead,