U.S. Air Force 1st Lt. Phill Bergeron, 15th Intel Squadron chief of standards and evaluation, adds a row of sandbags to a doorway at the Air Force Targeting Center at Langley Air Force Base, Va., Aug. 25, 2011. Langley AFB is preparing for Hurricane Irene, which is expected to make landfall in the area on early Sunday morning. (U.S. Air Force photo by Staff Sgt. Logan Tuttle)