Brett Dokken and Stephen Marshall, unmanned aerial vehicle pilots, prepare a civilian drone for takeoff at Melrose, New Mexico, Aug. 17, 2018. The drone was used to monitor rail roads for BNSF Railways. Part of the path was over Air Force air space, which after coordination, was approved, making the drone the first ever civilian drone to be approved to fly over air instillation. (U.S. Air Force photo by Senior Airman Lane T. Plummer)