The "Louie Louie" record, shown in 2003 ahead of an eBay auction, was a huge hit in the '60s. The hard-to-decipher lyrics led to some sordid speculation among teen listeners — and some fretting among those teens' parents. Elaine Thompson/AP hide caption

itoggle caption Elaine Thompson/AP

The Rev. Martin Luther King makes a statement at the Justice Department in Washington on Dec. 1, 1964 after a meeting with FBI Director J. Edgar Hoover. Under Hoover's leadership, the FBI investigated King and his personal life for years. Bob Schutz/AP hide caption

itoggle caption Bob Schutz/AP