The fictional destroyer in this episode is USS John Cooper (DDG-99). No such ship exists in the US Navy. No ship of the Navy has ever borne the name of John Cooper. However, an enlisted member of the Navy by that name twice received the Medal of Honor, for two distinctly different events during the Civil War. The real DDG-99 is USS Farragut, a guided-missile destroyer of the Arleigh Burke class, commissioned in 2005 and still in service in 2013.