GUARDIAN ANGELS Staff Sgt. Josiah Blanton uses a directional antenna to locate a beacon signal from a mountain locator unit during a search for three missing climbers at Mount Hood, Ore, Feb 18, 2007. Once he finds the signal, he marks the location and radios it into the command post to be plotted on a map. SHARE: Download: Full Size (0.04 MB) Credit: VIRIN: 645193-H-GFD62-534.jpg Photo Gallery