U.S. Army National Guard Chief Warrant Officer 4 Clifford Bauman recalls his experiences, at Langley Air Force Base, Va., Aug. 22, 2013, of the Sept. 11 attack on the Pentagon, Washington, D.C. Bauman’s memories of search and rescue missions through the building that day eventually led him to try and take his own life. (U.S. Air Force photo illustration by Staff Sgt. Jarad A. Denton/Released)