Nationwide warrantless wiretapping done by the CIA in the 60s/70s (confirmed by the family jewels)

A certain hallucinogen being 'experimented' with via the CIA administering massive doses to unwitting citizens. in one case, a man fell to his death from a window while alone in his hotel room...Nobody was sure why, considering the autopsy showed no traces of drugs or alcohol (this hallucinogen wasn't, and still isn't normally tested for), until the family jewels were released.