Members of Coast Guard Maritime Safety and Security Team San Diego 91109 stand in formation awaiting the arrival of their commanding officer during a change of command ceremony in National City, California, on April 22, 2016. MSST San Diego is trained to be a first responder to potential terrorist situations, deny terrorist acts, perform security actions against non-compliant and opposed actors, and perform tactical facility entry. (U.S. Coast Guard photo by Petty Officer 3rd Class Joel Guzman/released)