On the watch around the clock
Airman 1st Class Seth Lewis, 509th Operations Support Squadron air traffic control apprentice, slides a flight strip into a holder at Whiteman Air Force Base, Mo., March 11, 2013. A flight strip is used for flight planning to tell route of flight. It also tracks the arrival and departure times. (U.S. Air Force photo by Airman 1st Class Keenan Berry/Released)

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Photo by: Airman st Class Keenan BerryReleased  |  VIRIN: 130312-F-TQ704-028.JPG