Larry, thank you for at least mentioning hardening the target. It would not take the reincarnation of Einstein to design perimeter security that would keep armed lunatics out of our schools. Maybe some of the loonies on the other side think having a shoot out inside a school would prove something once and for all, but it wouldn't. I am not opposed to the gun ownership, but I wouldn't use one to change a tire. In other words, if there is a better way, do it. An impenetrable barrier is the better way.