U.S. Air Force Staff Sgt. Mario Francis, 633rd Civil Engineer Squadron electrical systems craftsman, strips wiring while installing a relay module in the Langley Transit Center fitness center at Langley Air Force Base, Va., Nov. 5, 2014. The transit center boasts a variety of recreation options for Service members undergoing the 21-day controlled monitoring period after returning from West Africa, including an entertainment center, fitness center and outdoor recreation facilities. (U.S. Air Force photo by Staff Sgt. Jason J. Brown/Released)