Remembering 9/11
President Barack Obama speaks at the 15th Anniversary of 9/11 commemoration ceremony at the Pentagon Memorial in Arlington, Va. Sept. 11, 2016. To the president’s left are Defense Secretary Ash Carter and Marine Corps Gen. Joe Dunford, the chairman of the Joint Chiefs of Staff. DoD photo by EJ Hersom

Photo by: EJ Hersom |  VIRIN: 160911-D-DB155-001.JPG