SPANGDAHLEM AIR BASE, Germany – Airman 1st Class Megan McMillan, 52nd Communications Squadron ground radar systems technician, verifies the radar air picture on a maintenance indicator at the ground radar maintenance shop here July 10. The radar air picture is the display the controllers use to monitor the weather and aircraft over Spangdahlem and the indicators are checked to ensure the accurateness of the visual quality for the air traffic controllers. Ground radar systems provide data used by air traffic controllers to manage Spangdahlem air space for U.S. and NATO aircraft. (U.S. Air Force photo by Senior Airman Christopher Toon/Released)