Since the 1970s, think tanks, books, pamphlets and strategically placed stories in the media pumped the idea of political correctness as a scourge into the public consciousness. MIT professor Ruth Perry, who was a student and activist in the 1960s and 1970s, told me that the majority of these stories were simply ‘a pack of lies’. But these lies were disseminated by a machine that had considerable funding and therefore, profound reach.

