There are some 14 year old girls targetting other students that were talking about killing them and how to do it, with what, etc. The school they went to took action by expelling them based on the contents of their personal off school property conversations. The ACLU is now involved in this by filing a lawsuit on behalf of the girls against the school citing things like the instance shouldn't have been taken so seriously as they used emoticons and acronyms in caps, etc.
I think the school was in the right as the posts were targetting other classmates in the school and have an obligation to protect them. What say you on this?