U.S. Air Force Senior Airman Brandon Burns, 1st Operations Support Squadron airfield management shift lead, demonstrates the capabilities of the federal aviation administration tracker system to Junior ROTC cadets during Shadow Day at Langley Air Force Base, Va., June 23, 2015. Airfield Management specialists ensure runways are clear of foreign objects and lighting systems function properly, in addition to responding to ground emergencies and communicating hazards to pilots. (U.S Air Force photo by Staff Sgt. John D. Strong II/ Released)