Sunstein on Worst-case Scenarios

Cass Sunstein of the University of Chicago talks about the ideas in his latest book, Worst-Case Scenarios. How should individuals and societies cope with low-probability events with potentially catastrophic consequences? In this conversation with EconTalk host Russ Roberts, Sunstein discusses the uselessness of the precautionary principle as a guide to behavior and the psychological challenges we all face in coping with uncertain, risky events. He also speculates why we have chosen politically t...