March 2, 1964
Director John Edgar Hoover speaks on the telephone to Senator John McClellan. Tells him that the Valachi Hearings, "shook them all up". Senator McCellan suggests that Mr. Hoover write him a letter to that effect.

March 6, 1964. Letter from Director Hoover to Senator McClellan states in part:- "In pursuing this purpose your committee has placed on the record information concerning conditions most citizens did not realize existed. There is no doubt that attention across the Nation was focused on Joseph Valachi's testimony regarding La Cosa Nostra as well as on the testimony of other witnesses who appeared at these hearings. Public opinion was moved against the forces of evil."