Tech. Sgt. Denis Foster donates blood during the 315th Airlift Wing health and wellness fair Oct. 2, 2010 at the Joint Base Charleston, S.C., Charleston Fitness and Sports Center. Elvia Guyton facilitated the donation process. Sergeant Foster is a fuels technician with the 315th Maintenance Squadron, and Mrs. Guyton is a certified phlebotomist with the Armed Services Blood Program. (U.S. Air Force photo/Staff Sgt. Shane Ellis)