As the theory goes, the CIA built a secret weapon in the ’60s and ’70s that could cause fatal heart attacks. The weapon shot a small poison dart that could penetrate clothing, and left behind nothing but a tiny red dot on the skin. The dart disintegrated on impact, and the target would only feel a small prick, similar to a bug bite. Since the poison denatured quickly, it could not be detected in an autopsy.

2. The CIA spied on, and controlled, the American media.