, the hit reality series is back with a new season. Executive producer Matt Sharp
reveals some of the most extreme ways that some people are preparing for the end of the world as we know it, and answers critics who say the program is legitimizing unrealistic worries. Plus sociologist Barry Glassner
, author of The Culture of Fear
discusses the dangers of fear itself and why we worry too much about unlikely events, and too little about the things that might actually hurt us.