Bertrand Russell was a Conspiracy Theorist

Russell was born into an aristocratic family in Victorian England. His legacy includes books of symbolic logic and philosophy, a scientific-humanistic world-view called Logical Positivism. There wasn't a superstitious bone in his body. He wrote this piece questioning the Warren Commission account of the JFK assassination when he was 92. It was the beginning of a burgeoning literature that asked the questions the Commission avoided. To neutralize this flood of questions, the CIA launched Memo 1035-960. It introduced "conspiracy theorist",  a new pejorative for anyone who questioned the government account. Note that the CIA is forbidden from operating intelligence programs within the US. All US government agencies were forbidden by the Smith-Mundt Act of 1948 from seeking to influence opinions expressed in the American press.