A U.S. Coast Guard boat patrols the waters during a cargo off-load at the TC dock Oct. 14, 2010, on Joint Base Charleston-Weapons Station, S.C. The USCG supports the Transportation Command by providing 24-hour protection for all vessels traveling in and out of port at the JB CHS-WS. The USCG has many missions and duties ranging from drug interdiction, search and rescue, migrant interdiction and other law encorcement duties.(U.S. Air Force photo/Senior Airman Timothy Taylor)

A U.S. Coast Guard boat patrols the waters during a cargo off-load at the TC dock Oct. 14, 2010, on Joint Base Charleston-Weapons Station, S.C. The USCG supports the Transportation Command by providing 24-hour protection for all vessels traveling in and out of port at the JB CHS-WS. The USCG has many missions and duties ranging from drug interdiction, search and rescue, migrant interdiction and other law encorcement duties.(U.S. Air Force photo/Senior Airman Timothy Taylor)