dr. herric, this tragedy touched so many people on so many different levels. and for the parents that was a terrifying experience. can this first day back to school also be challenging for them as they send their children back to class? >> absolutely. the parents have been affected enormously by this, perhaps even more so than the younger children. younger children take their cues from the parents. it's been a real challenge for them to try and modulate their own emotional reaction to this. so i think there's a lot of trepidation about returning to school on the part of the parents. and so we're taking steps to provide reassurance to them so that they can feel comfortable in helping their kids return to school and get back on the bus and reengage in their normal activities. i think the students are more ready in many ways than the parents are. >> and, dr. herric, if and when a child asks a teacher about this, why this happened, about their safety, their concerns, what can teachers do in addressing their students' concerns and fears at this time? >> well, we pr