If it turns out Adam Lanza is bipolar and I'm bipolar, does the bipolar explain his violence? Or does it explain my passivity? The labels are useful up to a point -- but they're hopeless in moments like these when the scope of the behavior is so far beyond the norm.
"If I still had children in the school system, I'd suddenly be thinking twice about whether I should send them off to school in the morning. I might try to organize at least some kind of mass refusal among local families to send their children to school for a certain period of time."