The FBI has a lead. A prominent religious leader and community advocate is in contact with a suspected sleeper agent of foreign radicals. The attorney general is briefed and personally approves wiretaps of his home and offices. The man was born in the United States, the son of a popular cleric. Even though he’s an American citizen, he’s placed on a watchlist to be summarily detained in the event of a national emergency. Of all similar suspects, the head of FBI domestic intelligence thinks he’s “the most dangerous,” at least “from the standpoint of … national security.”

Is this a lone wolf in league with foreign sponsors of terrorism? No: This was the life of Martin Luther King Jr. That FBI assessment was dated Aug. 30, 1963—two days after King told our country that he had a dream.

Source: What the FBI’s surveillance of Martin Luther King says about modern spying.