Airman 1st Class Bo Guist (left) and Brody Schneider, 28th Operations Support Squadron air traffic controllers, monitor the terminal radar sensor for aircraft at Ellsworth Air Force Base, S.D., Aug. 13, 2013. The Ellsworth AFB air traffic control radar approach facility controls 15 civilian satellite airports, two Air Force bases, and more than 22,000 sq. miles of airspace spanning over five states. (U.S. Air Force photo by Airman 1st Class Alystria Maurer/Released)