U.S. Coast Guard Petty Officers Dan Brooks and Michael Mulrooney participate in coldwater survival training. U.S. Coast Guard Petty Officers Dan Brooks (left) and Michael Mulrooney participate in coldwater survival training in the Boston Harbor, Boston, Mass., on Jan. 10, 2007. SHARE: Download: Full Size (0.05 MB) Credit: VIRIN: 947215-W-ZWJ76-968.jpg Photo Gallery