Staff Sgt. Kristen Marfa, 1st Aerospace Medical Squadron, Bioenvironmental Engineering non-commissioned officer in charge, donates blood for the blood drive at the Langley Community Center. Sunee Marshall, civilian contractor from Naval Medical Center Portsmouth, draws blood from volunteers during the Armed Services Blood Drive here Sept. 9. Sergeant Marfa was one of 71 donors at this drive. (U.S. Air Force photo/Tech. Sgt. Levi Collins)