Cmdr. Eric S. Bernstein, left, salutes Cmdr. James B. Wallace, former commanding officer of Coast Guard Port Security Unit 307, a Reserve unit home-ported in Clearwater, Fla., formally transferring command during a ceremony at Air Station Clearwater, Aug. 17, 2013. Established in May 1999 as a Coast Guard Reserve unit, PSU 307 is one of eight PSUs in the Coast Guard that provides security and protects personnel and facilities from terrorism, sabotage, espionage, subversion and attack. (U.S. Coast Guard photo Petty Officer 2nd Class Michael De Nyse)