Marijuana in the classroom? Sometimes it’s legal

“But around the country today, hundreds – perhaps thousands – of high schoolers are bringing pot to school, and they’re doing it legally. Not to get stoned, but as part of prescribed medical treatment. And they don’t have to tell school authorities about it.”

http://www.csmonitor.com/USA/2010/0123/Marijuana-in-the-classroom-Sometimes-it-s-legal