BARRIER BUILDERS Air Force Senior Airman Nathan Svenkerud, center, smiles as he passes a sandbag along a flood barrier building group of civilian volunteers and North Dakota Air National Guard personnel in Fargo, N.D., March 17, 2010. Civilian and military personnel are moving sandbags from pallets in driveways into flood-prone areas of backyards in the south Fargo neighborhood known as the Timberline area. Svenkerud is assigned to the 119th Communications Flight. SHARE: Download: Full Size (0.08 MB) Credit: VIRIN: 231892-P-EIO51-832.jpg Photo Gallery