ELLSWORTH AIR FORCE BASE, S.D. -- Senior Airman Joshua Ortiz-Mendoza, 28th Mission Support Group client systems technician, troubleshoots a printer at the 37th Bomb Squadron, March 16. Airman Ortiz-Mendoza, as part of his duties as a CST, works on faulty computers as well as computer equipment across the base. U.S. Air Force photo/Airman 1st Class Anthony Sanchelli)