(So infamous, they even wrote songs about him)

The name J.Edgar Hoover has been fading from Americas collective memory the past few decades. He died in 1972. But from 1924 up until his death he ran the FBI, taking it from a somewhat bumbling government agency into a monolith that was synonymous with eavesdropping, wiretaps, file keeping, political power plays, espionage and dirty tricks. He was the reason all subsequent FBI Directors had term limits. He made the FBI his life and his kingdom and was in charge right up to the last. He was the guy with all the secrets and he made a lot of innocent lives uncomfortable as the result.

Here he is from September 23, 1940 giving an address to the America Legion Convention in Boston, talking about one of his favorite subjects, The Communist Threat and "Foreignism".

With all that paranoia floating around, it's a wonder anybody slept at night.