US Coast Guard (USCG) Sailors aboard a Rigid Hull Inflatable Boat (RHIB) armed with a 7.62mm M60 general purpose machine gun, provide a security escort for the Liquefied Natural Gas (LNG) Commercial Tanker, MATTHEW in Boston Harbor. Escort of LNG Tankers are a multi-agency priority, consisting of Coast Guard, local and state police, and Massachusetts Environmental Patrol