COMMEMORATING 9/11 Defense Secretary Chuck Hagel, center, speaks as President Barack Obama, left, and Army Gen. Martin E. Dempsey, chairman of the Joint Chiefs of Staff, stand next to him during a ceremony at the Pentagon Memorial, Sept. 11, 2014, to commemorate the 9/11 terrorist attacks. SHARE: Download: Full Size (0.07 MB) Credit: VIRIN: 564059-V-QAM33-186.jpg Photo Gallery