Lt. Gen. Patricia Horoho (left), Vice Adm. (Dr.) Matthew Nathan and Lt. Gen. (Dr.) Thomas Travis join in a moment of silence during a hearing with the Senate Appropriations Committee's subcommittee on defense, April 9, 2014, in Washington, D.C. The surgeons general of the Army, Navy and Air Force commemorated the victims of the Ft. Hood, Texas shooting. Horoho is the Army surgeon general, Nathan is the Navy surgeon general and Travis is the Air Force surgeon general. (U.S. Air Force photo/Staff Sgt. Carlin Leslie)