Krissy Calvert, American Red Cross technician, questions U. S. Army Staff Sgt. Jason Panergo, 128th Aviation Brigade weapons instructor, before drawing blood at a blood drive held at Fort Eustis, Va., Oct. 15, 2014. McDonald Army Health Center hosts blood drives quarterly to earn credit for units of blood with the American Red Cross, saving both money and lives. (U.S. Air Force photo by Staff Sgt. Teresa J. Cleveland/Released)