BALAD AIR BASE, Iraq -- Tech. Sgt. Devlon Harrison, left, a 332nd Expeditionary Operations Support Squadron air traffic control tower watch supervisor, shows Senior Airman Joshua Snelling, a 332nd EOSS tower air traffic controller, a notice to airman in the tower here, Jan. 17. NOTAMs are daily rules the controllers follow based on daily mission changes. Sergeant Harrison is deployed from Eielson Air Force Base, Alaska, and Airman Snelling is deployed from Langley's 1st Operations Support Squadron. (U.S. Air Force photo/Staff Sgt. Travis Edwards)

BALAD AIR BASE, Iraq -- Air traffic controllers use binoculars to watch the takeoff of a small unmanned aerial vehicle from across the runway here, Jan. 17. Balad controllers oversee the busiest single runway in the Department of Defense. (U.S. Air Force photo/Staff Sgt. Travis Edwards)