Air traffic controllers from the 37th Operations Support Squadron prepare to navigate F-16 Falcons down the runway on Lackland Air Force Base. The air traffic controllers are responsible for all movement that takes place on the Kelly Field Annex and Lackland Air Force Base flight line. (U.S. Air Force photo/Senior Airman Christopher Griffin)

Staff Sgt. Lemetric Wadley, 37th Operations Support Squadron, scans Lackland's runway. The 37th OSS provide air traffic control, meteorology, airfield management, transient alert, and trainer maintenance services for Lackland. (U.S. Air Force photo/Senior Airman Christopher Griffin)

Staff Sgt. Robert Butler, 37th Operations Support Squadron, watches a C-5 as it prepares to take off from Lackland Air Force Base. Air traffic controllers from the 37th OSS are responsible for all movement that takes place on the Kelly Field Annex and Lackland Air Force Base flight line. (U.S. Air Force photo/Senior Airman Christopher Griffin)

Staff Sgt. Robert Butler, 37th Operations Support Squadron, watches a C-5 as it takes off from Lackland's flight line. Air traffic controllers with the 37th OSS are responsible for all movement that takes place on the Kelly Field Annex and Lackland Air Force Base flight line. (U.S. Air Force photo/Senior Airman Christopher Griffin)

Airman 1st Class Kent Grych, 37th Operations Support Squadron, scans the flight line for other aircraft as a C-5 takes off from Lackland Air Force Base. Air traffic controllers from the 37th OSS are responsible for all movement that takes place on the Kelly Field Annex and Lackland Air Force Base flight line. (U.S. Air Force photo/Senior Airman Christopher Griffin)