DAVID BROOKS:

"The relationship between speech and media and actual action is extremely murky. And correlation is not causation. We shouldn’t make that link very easily.

But to say that their speech was somehow responsible or created or contributed to the killing of those people, including a 9-year-old girl, to me, that wasn’t only irrelevant; that was irresponsible.”

From a discussion between Jim Lehrer, columnists Mark Shields and David Brooks, and Professors Beverly Gage of Yale and Kathleen Hall Jamieson of the University of Pennsylvania.