I can so see these things wreaking havoc at schools...
I mean, now one psycho can have the equivalent of a gunman helping him whenever he wants it.
Psychopants doesn't even have to be there when things go down, really. Just set it up and leave.
and i liked this quote:
"?there are some pretty good reasons for not building an optical sentry gun, a big one being that it?s generally a good idea to shoot down any missile headed in your direction, but that same philosophy may not be the best when applied to humans."
