That's good. Many schools in this area DON'T have that policy in place. Of course, they don't have a policy in place that leads to college-ready graduates wither. ;)
Sorry, my comment was in reply to the statement that content filtering and whit lists were unreasonably harsh measures to take, and the mindset that if people violate your trust on the open 'net, they should be punished.
I know and agree with what you're saying.