13. The FBI tried to blackmail Martin Luther King Jr. to commit suicide
We are continuing our list of the biggest US Government cover ups of all time with the J. Edgar Hoover, the infamous head of the FBI who was so paranoid (he makes the 9/11 truthers look sane) that decided King was against the American way. When the FBI found out that King was having an affair (yes even the most perfect people are fallible) they sent him a letter which was meant to persuade him to commit suicide. Of course, that didn’t end up happening, but that does not make this any less chilling.