Lending a helping hand
Volunteers donate pints of blood during an American Red Cross blood drive at Whiteman Air Force Base, Mo., May 16, 2013. With a mission to provide life-saving blood to patients in times of crises and disasters, the American Red Cross is the largest supplier of blood in the U.S. (U.S. Air Force photo by Staff Sgt. Nick Wilson/Released)

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Photo by: Staff Sgt. Nick WilsonReleased  |  VIRIN: 130516-F-EA289-154.JPG