Was AIDS intentionally inflicted upon blacks by whites? Was JFK assassinated as part of an intricate conspiracy? Pipes traces conspiracy theories through history to show that "Conspiracism"--genuine and virulent belief in a conspiracy--dates back to the First Crusade and reached a peak in the Soviet Union and Nazi Germany, with the focus shifting from the Jews, groups such as Freemasons and the Rosicrucians, and back again. --DanielPipes.org