Why did the CIA try to kill an African political leader with poisoned toothpaste? Was a recent attempt to blow up Venezuela's dictator with a small consumer drone a genuine attack, or just a pretext to crack down on his political opponents? And which US president got shot in the chest by a would-be assassin but continued speaking for 90 minutes, even as he was bleeding? --- Power Corrupts is written and narrated by Brian Klaas. The executive producer and sound editor is George McDonagh.