President Barack Obama and Gen. Martin Dempsey, Chairman of the Joint Chiefs of Staff, listen to Defense Secretary Chuck Hagel deliver remarks during the September 11th Observance Ceremony at the Pentagon Memorial in Arlington, Va., Sept. 11, 2014. 15 Sep 2014|David Lang SHARE Share to Facebook Share to Twitter Share to LinkedIn Share to Email Print This Post With ImagesWithout Images Share SHARE Share to Facebook Share to Twitter Share to LinkedIn Share to Email Print This Post With ImagesWithout Images