A video about Neo-Nazis originating in Sweden provides the starting point of an investigation of extremists' networks in Europe, Russia, and North...

Out of the spiritual chaos of the 1960s, more strange cults and unorthodox messiahs have emerged than ever. Charles Manson is seen as the annoying...

Louis Theroux travels to California to meet the man dubbed "the most dangerous racist in America"; Tom Metzger. Louis meets him, his family and his...