I watched the video as well and found it extremely haunting, even though I have seen many videos of the event. I note that the link says "unfiltered videos," which I read as a warning that the videos will be quite shocking. I would question a teacher's choice to show these. I understand the hesitation to say anything. Oh, I really feel for you. My DD was devastated to receive her first "lesson" about 9/11 in second grade. We had not told her about it because we knew she was not of an age to handle it well yet. frown