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-1 bombers in the U.S. Air Force inventory are being upgraded with a state-of-the-art wheel and brake system that provides more durability to wheel components. (U.S. Air Force photo by Airman 1st Class Rebecca Imwalle/ Released)