The press has misreported a lot about the Newtown shooting, and if history is any guide, much of that misreporting will inform our memory of the event. In his book Columbine, Dave Cullen revisited that soul shattering school shooting 13 years ago. He tells Bob that our story of that event is largely frozen in early misreporting.

Grizzly Bear- What's Wrong

The gun control debate has featured prominently in news and political agendas in the wake of both disasters, but questions of mental health resources are just as pressing. What has Colorado learned since Columbine?

The problem with those two categories is that they leave out one of the largest categories: the sane perpetrator with a personal agenda. Columbine shocked the country because Eric Harris took the personal attack to an unprecedented level: self-motivated terrorist attack. But we see less grandiose examples of the same instinct several times a year. A few shooters who "go postal" are nuts. Most are sane.

In the heat of a breaking story, news media frequently run details which later turn out to be incorrect. One case in point: it's recently come out that it wasn’t actually civilian police officer Kimberly Munley who shot down Hasan, as initially reported, but rather another officer, Sgt. Mark Todd. What else that's come from Fort Hood has been corrected since last week? To discuss and update the reporting thus far, we are joined by Campbell Robertson from our partner The New York Times, who has been reporting in Killeen, Tex. We also have Dave Cullen, author of "Columbine," about the Columbine High School massacre.