Former Reagan speech writer, Peggy Noonan, nails this one:
There seems to me a sort of broad national diminution of common sense in our country that we don’t notice in the day-to-day but that become obvious after a story like this. Common sense says a person like Cho Seung-hui, who was obviously dangerous and unstable, should have been separated from the college population. Common sense says someone should have stepped in like an adult, like a person in authority, and taken him away. It is only common sense that if a person like Cho leaves a self-aggrandizing, self-celebrating, self-pitying video diary of himself to be played by the mass media, the mass media should not play it and not publicize it, not make it famous. Common sense says that won’t help.
The most common-sensical thing I heard said came Thursday morning, in a hospital interview with a student who’d been shot and was recovering. Garrett Evans said of the man who’d shot him, “An evil spirit was going through that boy, I could feel it.” It was one of the few things I heard the past few days that sounded completely true. Whatever else Cho was, he was also a walking infestation of evil. Too bad nobody stopped him. Too bad nobody moved.