Dr. Michael Shermer is the Founding Publisher of Skeptic magazine, the host of the Science Salon Podcast, and a Presidential Fellow at Chapman University where he teaches Skepticism 101. For 18 years he was a monthly columnist for Scientific American. He is the author of New York Times bestsellers Why People Believe Weird Things and The Believing Brain, Why Darwin Matters, The Science of Good and Evil, The Moral Arc, and Heavens on Earth. His new book is Giving the Devil His Due: Reflections of a Scientific Humanist. (Photo by Jordi Play)