12/14/2013 - Cruelty, violence, badness...This episode of Radiolab wrestles with the dark side of human nature, and asks whether it's something we can ever really understand or fully escape. We reconsider what Stanley Milgrim's famous experiment really revealed about human nature, meet a chemist who scrambles our notions of good and evil, and talk to a man who chased one of the most prolific serial killers in US history...then got a chance to ask him the question that had haunted him for years: why?
http://www.radiolab.org/search/?q=The+Bad+Show#q=The%20Bad%20Show