Lending a helping hand
A volunteer donates a pint of blood during a blood drive sponsored by the American Red Cross at Whiteman Air Force Base, Mo., May 16, 2013. Each year the American Red Cross processes more than 6.5 million units of blood from approximately 4 million donors and distributes them to various hospitals across the nation for blood transfusions and research. (U.S. Air Force photo by Staff Sgt. Nick Wilson/Released)

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Photo by: Staff Sgt. Nick WilsonReleased  |  VIRIN: 130516-F-EA289-140.JPG