obtained a number of vessels from the Republic of Vietnam's naval forces. The South Vietnamese Navy carried out several changes to the vessel's armament. The American M2 machine gun was replaced by a domestically produced 12.7 mm NSV gun which had fewer jamming problems and was easier for the crews to maintain. The electronic and communication systems were also overhauled. There are two operational PCFs in the United States today. R/V Matthew F. Maury is operated by Tidewater Community College in Virginia Beach, Virginia. Formerly PCF-2, the vessel was awarded to the college in 1995 and has been used in oceanographic research and education since then. It is berthed at JEB Little Creek and operates in and around Chesapeake Bay. The second operational PCF, PCF-816 (formerly P-24 in the service of Malta) is operational in San Diego, California at the Maritime Museum of San Diego. The boat makes regular runs on weekends and is staffed with former Swift Boat sailors as narrators. There are two Swift Boats preserved in static displays in the United States. Both are former U.S. Navy Swift Boats that were originally stationed in California to train PCF crews. One is located at the Navy Museum at Washington Navy Yard in Washington, D.C.; the second Swift Boat is on the Naval Special Weapons Base at Naval Amphibious Base Coronado, California, the original home of PCF training. Notable personnel Those who served on the boats in Vietnam and later became politicians include Nebraska Governor and U.S. Senator Bob Kerrey, a recipient of the Medal of Honor, and Arizona Congressman Jim Kolbe, who served in the United States Navy. U.S. Senator and Secretary of State John Kerry commanded a Swift Boat when he served in Vietnam. LTJG Kerry was awarded the Silver Star, Bronze Star and three Purple Hearts during riverine combat in a PCF. As the Democratic nominee for president in 2004, then-Senator Kerry's military record was attacked by a political 527 group called Swift Boat Veterans for Truth. Ever since, the term "swiftboating" has entered American political jargon associating swift boat service with political smear tactics. In an article in The New York Times on June 30, 2008, Swift Boat veterans objected to the prevalent use of the verb "swiftboating" as this type of ad hominem attack, stating that it is disrespectful to the men who served and died on the PCFs during Vietnam. See also Boghammar