It's hard to imagine why J. Edgar Hoover's FBI compiled a huge file on John Lennon. According to documents obtained by the ACLU of southern California, reports on the former Beatle included the revelation that Lennon contributed $75,000 to an apparently nonexistent peace group. Was Lennon a national-security threat? Not according to the files. One agent noted: "Lennon and his wife are passe about [sic] United States politics." The files do show that Nixon aide H. R. Haldeman was aware of the surveillance. Maybe Nixon was a fan.