This is what we do
U.S. Air Force Senior Airmen Michael Zientek, left, and Darnell Smith, 23rd Operations Support Squadron air traffic controllers (ATC) and trainers, simulate their capabilities at Moody Air Force Base, Ga., Aug. 18, 2011. ATCs are responsible for keeping a watchful eye on the flight line and ensuring the safety of pilots flying aircraft within a five-mile radius of Moody. (U.S. Air Force photo by Staff Sgt. Jamal D. Sutter/Released)