Prep time
Lois Dryman, American Red Cross technician, prepares U.S. Air Force Capt. Michael Sackenheim, 74th Fighter Squadron A-10C Thunderbolt II pilot, for a blood donation here at Moody Air Force Base, Ga., Dec. 27, 2011. The blood from donors provides relief to victims of disasters and helps people prevent, prepare for, and respond to emergencies. (U.S. Air Force photo by Staff Sgt. Ciara Wymbs/Released)