President Barack Obama shakes hands with family members of those lost during the Sept. 11, 2001, terror attack at the Pentagon following a Sept. 11, 2010, ceremony marking the ninth anniversary of the attacks. President Barack Obama shakes hands with family members of those lost during the Sept. 11, 2001, terror attack at the Pentagon following a Sept. 11, 2010, ceremony marking the ninth anniversary of the attacks. SHARE: Download: Full Size (4.92 MB) Tags: Photo Essays Credit: VIRIN: 886537-J-EDK61-385.jpg Photo Gallery