U.S. Air Force 1st Lt. Jonathon Rhodes, 633rd Communications Squadron wing information assurance officer in charge, awaits medical attention during an active-shooter exercise at Langley Air Force Base, Va., Nov. 19, 2013. During the simulation, victims were transported from the scene by the 633rd Civil Engineer Squadron fire protection team.(U.S. Air Force photo by Airman 1st Class Victoria H. Taylor/Released)