Staff Sgt. Yoendri Reinosa and Senior Airman Clinton Bruce, air traffic controllers assigned to the 28th Operations Support Squadron, watch as a B-1 bomber takes off at Ellsworth Air Force Base, S.D., Nov. 16, 2016. Basic duties of air traffic controllers include clearing aircraft, clearance deliveries and ensuring flight safety. (U.S. Air Force photo by Airman 1st Class Donald C. Knechtel)