There was a time when major media outlets refused to touch unsubstantiated allegations.

Howard Kurtz's column on the absurd story planted in Insight Magazine and passed off as originating with Hillary recounts how the "story" spread throughout the media world should be must-reading in every newsroom and among first tier bloggers.  New and old journalists alike have to reassess their policies now, and reject anonymous sourcing for "blockbuster" stories, whether in The New York Times or Insight Magazine.