VIGILANT GUARD U.S. Air Force Master Sgts. Ed McManus, left, and Troy Wilkerson, both assigned to 169th Communications Flight, South Carolina Air National Guard, set up a commercial satellite antenna at the Beaufort Public Works Facility during an emergency exercise in Beaufort, S.C., April, 17, 2008. SHARE: Download: Full Size (0.06 MB) Credit: VIRIN: 228609-H-BPB17-275.jpg Photo Gallery