Did you watch the story endkaos? If you're the least bit familiar with simunitions, you'd see that that's exactly what they ARE using.

andkaos.... with paintballs they can see when someone has been shot... more reliable than laser tag and the such... plus it is easy paint to clean.... it takes a kleanex and some water, maybe some very light cleaners if it has been there long enough

Using Paintball in an active school location? Haven't these people heard of simunitions? How much money is it going to cost to clean up after the paint? Great idea, sloppy execution.

I'm glad I grew up in the country. No crime and it was really cool too. It is nuts to have to think that a person can get killed while at school!