<p>But I think you can't underestimate the effect of post-traumatic stress. If you have ever been close to an incident where you truly felt you might have died...well it's a much different feeling. It sticks to you differently. Every kid and faculty/staff person on that campus is thinking (perhaps subliminally) - "It could have been me" and they are right. The repercussions from that - the terror, the guilt, the grief - are huge.</p>