Staff Sgt. John Sweeney and Master-at-Arms Second Class Petty Officer Michael Jones, 628th Security Forces Squadron Harbor Patrol Unit, patrol the waterways Aug. 15, 2012 at Joint Base Charleston - Weapons Station, S.C. The Harbor Patrol Unit's mission is to protect the assets of JB Charleston. The officers patrol 24 hours a day, seven days a week and cover 16 square miles of water around the base. (U.S. Air Force photo/Airman 1st Class Ashlee Galloway)

The 628th Security Forces Squadron Harbor Patrol Unit patrols and protects the waterways around Joint Base Charleston – Weapons Station 24 hours a day, seven days a week. The boat officers are Air Force, Navy and civilian personnel. (U.S. Air Force photo/Airman 1st Class Ashlee Galloway)

Officer Patrick Murphy and Staff Sgt. Neil White, 628th Security Forces Squadron Harbor Patrol Unit, simulate a high speed chase Aug. 15, 2012, at Joint Base Charleston - Weapons Station, S.C. The Harbor Patrol Unit's mission is to patrol and protect the waterways around JB Charleston – Weapons Station. (U.S. Air Force photo/Airman 1st Class Ashlee Galloway)

Officer Patrick Murphy and Staff Sgt. Neil White, 628th Security Forces Squadron Harbor Patrol Unit, simulate a high speed chase Aug. 15, 2012, at Joint Base Charleston - Weapons Station, S.C. The Harbor Patrol Unit's mission is to patrol and protect the waterways around JB Charleston – Weapons Station. (U.S. Air Force photo/Airman 1st Class Ashlee Galloway)

Master-at-Arms Second Class Petty Officer Michael Jones, 628th Security Forces Squadron Harbor Patrol Unit, drives a Sea Ark boat while on patrol Aug. 15, 2012, in the waters around Joint Base Charleston – Weapons Station, S.C. The Weapons Stations officers patrol the waterways 24 hours a day, seven days a week. (U.S. Air Force photo/Airman 1st Class Ashlee Galloway)

Staff Sgt. John Sweeney, 628th Security Forces Squadron Harbor Patrol Unit, demonstrates aiming an M240 machine gun while on patrol Aug. 15, 2012, at Joint Base Charleston - Weapons Station, S.C. The M240 has a weight of 27.6 lbs., a maximum effective range of 1,800 meters area target and 800 meters point target. The M240 can shoot from 200 to 600 rounds-per-minute. Officers from the Harbor Patrol Unit must be qualified on the M240 and the M60 machine gun. (U.S. Air Force photo/Airman 1st Class Ashlee Galloway)

Staff Sgt. John Sweeney, 628th Security Forces Squadron Harbor Patrol Unit, demonstrates aiming an M240 machine gun while on patrol Aug. 15, 2012, at Joint Base Charleston - Weapons Station, S.C. The M240 has a weight of 27.6 lbs., a maximum effective range of 1,800 meters area target and 800 meters point target. The M240 can shoot from 200 to 600 rounds-per-minute. Officers from the Harbor Patrol Unit must be qualified on the M240 and the M60 machine gun. (U.S. Air Force photo/Airman 1st Class Ashlee Galloway)

Staff Sgt. John Sweeney and Master-at-Arms Second Class Petty Officer Michael Jones, 628th Security Forces Squadron Harbor Patrol Unit, patrol the Cooper River Aug. 15, 2012 at Joint Base Charleston - Weapons Station, S.C. The Harbor Patrol Unit's mission is to protect the assets of JB Charleston. The officers patrol 24 hours a day, seven days a week and cover 16 square miles of waterways around the JB Charleston – Weapons Station. (U.S. Air Force photo/Airman 1st Class Ashlee Galloway)

Master-at-Arms Second Class Petty Officer Michael Jones, 628th Security Forces Squadron Harbor Patrol Unit, drives a Sea Ark boat while on patrol Aug. 15, 2012 at Joint Base Charleston - Weapons Station, S.C. The Weapons Station officers patrol the waterways around the base 24 hours a day, seven days a week. (U.S. Air Force photo/Airman 1st Class Ashlee Galloway)

Master-at-Arms Second Class Petty Officer Michael Jones, 628th Security Forces Squadron Harbor Patrol Unit, ties down a Sea Ark boat after a patrol Aug. 15, 2012, at Joint Base Charleston - Weapons Station, S.C. The 628th SFS officers patrol the waterways around the base 24 hours a day, seven days a week. (U.S. Air Force photo/Airman 1st Class Ashlee Galloway)