This chapter argues the idea that there is something suspect about conspiracy theories is one of the most dangerous and idiotic superstitions to disgrace our political culture. It shows that the idea that there is something intellectually suspect about conspiracy theories as such – which is presupposed by the use of ‘conspiracy theory’ and ‘conspiracy theorist’ as generalized terms of intellectual abuse – is simply a superstition; indeed one of the most idiotic and dangerous superstitions. Conspiracy, in short, is endemic in political life, a fact that should be fairly obvious to anyone who bothers to read the newspapers or watch the nightly news. Every historically and politically literate person is a conspiracy theorist on a grand scale, though many ‘intellectuals’, politicians and political commentators are apparently unaware of the fact. In using ‘conspiracy theories’ as a term of political abuse, Tony Blair was, of course, subscribing to the intellectuals’ superstition.