JOINT BASE MCGUIRE-DIX-LAKEHURST, N.J. -- Port Security Unit (PSU) 307 members depart the passenger terminal for their flight to the Middle East, July 22, 2011. While deployed, PSU 307 will be charged with providing harbor defense and security to ports, seaward approaches, and waterways within U.S. Central Command's area of responsibility and ensuring the free flow of personnel, equipment and commerce in the region. U.S. Coast Guard photo by Petty Officer 2nd Class Michael Anderson.