Once concerned parents began to report their outrage about this allegedly "obscene" song to the FBI, the Bureau made the mistake of expending all their effort in proving it true rather than investigating the rumor itself. It was as if a frightened mother had written to J. Edgar Hoover concerning a story she'd heard about a maniac with a hook being on the loose, and Hoover responded by sending out field agents to investigate whether or not a criminal with a missing hand had recently escaped from a psychiatric hospital. The FBI didn't try to find out where these dirty lyric sheets were coming from; instead, they spent two and a half years analyzing "Louie Louie" played at a variety of speeds and interrogating nearly everyone connected with the song, including Paul Revere and the Raiders, Richard Berry, the Kingsmen, and even record company executives. One person they never, ever talked to was the one person who indisputably knew what words had been sung on the Kingsmen's recording: singer Jack Ely. (Ely had been fired from the band well before "Louie, Louie" hit it big, a fact the remaining Kingsmen were not anxious to publicize.) After thirty-one months of trying to unravel the mysteries of "Louie Louie," the FBI could conclude only that they were "unable to interpret any of the wording in the record."
Need it be said? If the new Leonardo DiCaprio as Hoover movie doesn't explore this incident, it must be considered a failure.