Krissy Calvert, American Red Cross technician, inserts a needle into the arm of U. S. Army Staff Sgt. Jason Panergo, 128th Aviation Brigade weapons instructor, at a blood drive held at Fort Eustis, Va., Oct. 15, 2014. Donors can schedule an appointment or walk in to donate during the quarterly blood drives. (U.S. Air Force photo by Staff Sgt. Teresa J. Cleveland/Released)