U.S. Air Force Senior Airman Joshua Shaffer, 1st Operations Support Squadron air traffic controller, looks out for an aircraft set to land at Langley Air Force Base, Va., Jan. 20, 2015. The Langley AFB control tower supports the 1st Fighter Wing flying mission in addition to NASA, transient aircraft, Fort Eustis aircraft and distinguished visitor aircraft flying missions. In fiscal year 2014, the tower supported 28,000 flying missions. (U.S. Air Force photo by Staff Sgt. Natasha Stannard/Released)