I've fantasized for a long time about the class on critical thinking that I would teach if I was ever given the opportunity. (I also fantasize about what I would do with the winnings from lotteries I never play and where I would go if I could time travel, but I digress.) We live in a world where there are powerful forces (e.g. Big Tobacco, Big Oil) with millions of dollars to spend sowing doubt about the scientific consensus on smoking, climate change, and more. We live in a world of self-styled experts who have discovered there are millions of dollars to be made from peddling conspiracy theories about vaccines, GMOs, the 9/11 attacks, and more. A number of years ago I watched the 1999 Errol Morris documentary "Mr. Death: The Rise and Fall of Fred A. Leuchter, Jr." and knew immediately how I would use it to talk about the limitations of forming an opinion without knowledge or expertise. First, I would show my fictional class these three clips to provide the necess