HONORING PENTAGON VICTIMS President Barack Obama lays a wreath at the Pentagon Memorial, Sept. 11, 2011, with First Lady Michelle Obama, Defense Secretary Leon E. Panetta and Navy Adm. Mike Mullen, chairman of the Joint Chiefs of Staff, to honor the 184 victims killed when American Airlines Flight 77 crashed into the Pentagon during a terrorist attack 10 years ago. SHARE: Download: Full Size (0.08 MB) Credit: VIRIN: 584673-R-JAY15-876.jpg Photo Gallery