U.S. Coast Guard Petty Officer 2nd Class Tyler Hammon, deployed with Maritime Safety and Security Team 91103, cleans the barrel of an M-240B machine gun after a gun exercise, April 15, 2010. MSST 91103 performs maritime anti-terrorism and force protection duties for Joint Task Force Guantanamo. JTF Guantanamo conducts safe, humane, legal and transparent care and custody of detainees, including those convicted by military commission and those ordered released by a court. The JTF conducts intelligence collection, analysis and dissemination for the protection of detainees and personnel working in JTF Guantanamo facilities and in support of the War on Terror. JTF Guantanamo provides support to the Office of Military Commissions, to law enforcement and to war crimes investigations. The JTF conducts planning for and, on order, responds to Caribbean mass migration operations.