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A guest holds the program for ceremonies in honor of the victims of the attack on the Pentagon during ceremonies marking the 10th anniversary of the 9/11 attacks on the Pentagon in Washington

A guest holds the program for ceremonies in honor of the victims of the attack on the Pentagon during ceremonies marking the 10th anniversary of the 9/11 attacks on the Pentagon, in Washington September 11, 2011. (REUTERS/Molly Riley)

9/11 Pentagon ceremony

January 1, 1970

Remembering the September 11, 2011 attack on the Pentagon.