MIAMI -- Petty Officer 2nd Class Jevaun Martinboro, a gunner's mate with Maritime Safety and Security Team 91114, flies over Miami with fellow crewmembers aboard a CBP Air and Marine Branch helicopter Thursday, Sept. 17, 2009. MSSTs were created under the Maritime Transportation Security Act of 2002 in response to the terrorist attacks of Sept. 11, and are a part of the Department of Homeland Security's layered strategy directed at protecting seaports and waterways. (Coast Guard photo/Petty Officer 3rd Class Nick Ameen)