Senior Airman Christopher Dye, 28th Aircraft Maintenance Squadron B-1 Bomber crew chief, donates blood during a blood drive conducted by United Blood Services in the 28th Maintenance Squadron at Ellsworth Air Force Base, S.D., Oct. 18, 2013. Blood collected by UBS is stored in the local area, supplying blood to those in need including accident victims and others needing transfusions. (U.S. Air Force Photo by Airman 1st Class Rebecca Imwalle/ Released)