140121-F-JW079-163 Secretary of the Air Force Deborah Lee James asks Staff Sgt. Daniel Ashcroft, 90th Maintenance Operations Squadron Training Flight, about a maintainer’s job and the functions of a payload transport vehicle Jan. 21, 2014. James and Chief Master Sgt. of the Air Force James Cody, left, visited the 20th Air Force and 90th Missile Wing on F.E. Warren Air Force Base, Wyo., to learn about the Minuteman III weapon system and the Airmen who operate, maintain, secure and support it. (U.S. Air Force photo by R.J. Oriez)