In the past, I would have joined in a discussion about an incident of this sort, but now I am thinking....why bother ?
If 1000's of unnecessary deaths a year doesn't bother Americans, why should it bother me ?
After Dunblane, we got our act together and passed legislation that made such incidents of this sort, much, much less likely to occur in Britain, and not before time.
If Americans were really keen on preventing incidents like this, they would have done something about it by now, and they haven't.