Did 'Vitriol' on Airwaves Trigger Arizona Attack?

Megyn Kelly interviews Arizona Sheriff Clarence Dupnick on Jarad Loughner: "There is no way to rationalize irrational behavior". (In response to those who would suggest that "vitriolic" statements on radio and TV are to blame.) Kelly, in her subtleties, goes at Dupnik 4 specific times, all while remaining calm & focused, drawing attention to THE FACT that it is Dupnik himself, who is responsible for the use of "vitriolic rhetoric" to make a political statement about this senseless crime.

Megyn Kelly also interviewed James Rosen and Peter Johnson Jr. about the personal disorder of Jared Lee Loughner.

What's the Biggest Threat to Free Speech?