 The Select Committee continued to focus on Dioguardi's activities.In February 1957, the Select Committee released Federal Bureau of Investigation wiretaps which showed Hoffa and Dioguardi allegedly discussing the establishment of a paper local to organize New York City's 30,000 taxi cab drivers and then use the charter as a means of extorting money from a wide variety of employers.Testifying before the Select Committee, Hoffa claimed that the tapes only showed that he wanted the best organizer in the city to work on the taxi organizing campaign, and that he could not have engaged in conspiracy because Dioguardi was not a member of the Teamsters union.