Sept. 11 Anniversary

An unidentified woman wipes away a tear during the playing of Amazing Grace during a ceremony marking the 10th anniversary of the September 11 attacks at the Pentagon in Washington, Sunday, Sept. 11, 2011. (AP Photo/Charles Dharapak)

An unidentified woman wipes away a tear during the playing of Amazing Grace during a ceremony marking the 10th anniversary of the September 11 attacks at the Pentagon in Washington, Sunday, Sept. 11, 2011. (AP Photo/Charles Dharapak)