U.S. Coast Guard Petty Officer 2nd Class Jonathan O'Connor, a waterside securityman with Maritime Safety and Security Team 91103, instructs a new crewmember, U.S. Coast Guard Petty Officer 2nd Class Joshua Graham, a waterside securityman with MSST 91104, on boat operations May 12, 2010. A detachment of MSST 91104, from Galveston, Texas, recently replaced a detachment from MSST 91103, homeported in Los Angeles/Long Beach, Calif. The Coast Guard detachments perform maritime anti-terrorism and force protection duties for Joint Task Force Guantanamo.