Doomday Scenarios: What to Believe?

By January of this year, global warming had been added to rumors of nuclear war and the "Doomsday Clock" was moved two minutes closer to midnight. That hasn't been changed since. On this archived New Year's Eve edition of To the Point, are recent predictions of catastrophe are equally credible? Are they any more likely than what humankind has survived already? Does popular culture promote understanding or increase unreasonable fears? Also, a progress report on congressional ethics reform, and New Year's Eve in Des Moines, Iowa: stereotypes and reality from a New Yorker's point of view.