U.S. Coast Guard Petty Officer 3rd Class Ryan Lewis, a waterside securityman with Maritime Safety and Security Team 91104, mans a .50-caliber machine gun aboard a U.S. Coast Guard patrol boat, May 12, 2010. A detachment of MSST 91104, from Galveston, Texas, is deployed to Naval Station Guantanamo Bay to perform maritime anti-terrorism and force protection duties for Joint Task Force Guantanamo.