Last weekend I attended the Autism Trust’s Give Autism a Chance Summit. Billed as an “informative conference,” it actually felt like a Two Minutes Hate about the evils of science and medicine. Speakers harangued the audience about the evils of vaccination–including a bizarre show trial–and pushed snake oil on desperate parents. Some of the speakers touted services based on absurd, unproven theories; others lied shamelessly to the attendees. Although there were some positive messages on display, the conference focused on sowing fear and using it to move product.