Blood Donors
Jeff Griffith, United Blood Services assistant donor care supervisor, prepares to draw blood from a donor during a blood drive conducted by United Blood Services in the 28th Maintenance Squadron at Ellsworth Air Force Base, S.D., Oct. 18, 2013. With more than 25 Airmen donating throughout the day, UBS was able to collect over three gallons of blood. (U.S. Air Force Photo by Airman 1st Class Rebecca Imwalle/ Released)