Multi genre project

I'm not completely sure if I could do my topic on this, mainly because a great amount of this idea is social, not only educational.  Cyber bullying is extremely high among teens, especially when texting and social media outlets, such as facebook, myspace, and twitter, are everywhere.  This bullying can cause severe depression in students and can a negative impact on their schooling as well.  A few weeks ago MTV came out with a movie about cyber bulling and has caused suicide in one of the characters.  Another character, suffered depression after a picture of her which she sent to an ex-boyfriend circulated around school.  In high school, there are issues like these as well as many student's "first love," which more times than not ends in a first heartbreak.  I am interested to find out what (if at all) a teacher can do during these situations.  Should a teacher intervene when they see he/she going through something?  Or is that crossing boundaries?  What if a teacher sees something out in the hall or other school property they would deem inappropriate?  Mainly, I want to see teacher's boundaries when it comes to such common elements of teenage life-- relationships, depression, and wanting to fit in.