THREAT WATCH U.S. Marine Corps Lance Cpl. Kevin Murphy looks for potential threats as Afghan forces board a CH-53D Sea Stallion helicopter in Jahazi, Afghanistan, Oct. 17, 2010. Murphy, a crew chief, is assigned to Marine Heavy Helicopter Squadron 362, 3rd Marine Aircraft Wing. SHARE: Download: Full Size (0.06 MB) Credit: VIRIN: 740747-M-DFR67-960.jpg Photo Gallery