Peggy Noonan wonders (sorry, the Journal doesn’t seem to believe in permalinks for current articles):

The last testament Cho sent to NBC seemed more clear evidence of mental illness–posing with his pistols, big tough gangsta gonna take you out. What is it evidence of when NBC News, a great pillar of the mainstream media, runs the videos and pictures on the nightly news? Brian Williams introduced the Cho collection as “what can only be described as a multi-media manifesto.” But it can be described in other ways. “The self-serving meanderings of a crazy, self-indulgent narcissist” is one. But if you called it that, you couldn’t lead with it. You couldn’t rationalize the decision.

Such pictures are inspiring to the unstable. The minute you saw them, you probably thought what I did: We’ll be seeing more of that.