David Wonsitler, 28th Aircraft Maintenance Squadron electrical environmental technician, wires a brake temperature sensor on a B-1 bomber at Ellsworth Air Force Base, S.D., March 18, 2014. All B-1s will be upgraded with a new brake systems by January 2015 designed to be more robust with a longer lifespan than previous brakes. (U.S. Air Force photo by Airman 1st Class Rebecca Imwalle/ Released)