On the watch around the clock
Staff Sgt. Blaine Caudill, 509th Operations Support Squadron air traffic control watch supervisor, reviews a crash grid map at Whiteman Air Force Base, Mo., March 11, 2013. In the event of an aircraft crash, the map is used to provide a detailed location of the crash site. (U.S. Air Force photo by Airman 1st Class Keenan Berry/Released)