Tech. Sgt. Jaime Torres, 28th Medical Support Squadron NCO in charge of medical maintenance, registers to donate marrow during a Department of Defense Bone Marrow Donor Program registration drive in the Exchange lobby at Ellsworth Air Force Base, S.D., Oct. 15, 2012. Ellsworth Airmen and their families came from all across the base to register in an effort to find life-saving marrow matches for those suffering from fatal diseases. (U.S. Air Force photo by Airman 1st Class Hrair H. Palyan/Released)