The Accidents of History

Zachary Crockett: How much of our lives are shaped by an institution or event that we really don't have much control over. He says if people had been smoking marijuana regularly for the last 300 years, and alcohol had just kind of come along and been on the fringes, there's no way we'd say alcohol should be freely consumed all the time. On next week's show, what if you knew there's a 50-50 chance that you're going to get a terrible disease and die? We may think we want to know our future, but the data say otherwise.