ATC Airmen aim for checkmate
Airman 1st Class John Moreno, 86th Operations Support Squadron air traffic controller, writes down a reminder March 14, 2014, Ramstein Air Base, Germany. Air traffic controllers at Ramstein Air Base, are responsible for providing safe and efficient air traffic flow by policing the movement of aircraft, issuing safety alerts and giving pilots a clear and precise picture of what is in the air space around them. (U.S. Air Force photo/Senior Airman Jonathan Stefanko)