I believe any time you have your kids watching challenging teen situations on media, parents should be watching with their children.  I have to watch, or my husband, anime stuff that comes out that my kids want to look at all the time.  There is alot of violence in unsuspecting places.  So parents really do need to at least monitor what their teens are watching, and then be willing to dialogue with their kids about the subject matter. 

We also need to be careful about who kids are going places with as friends.  It is unwise to ban any friends, unless the friend is violent, bullying or using drugs, etc. but if you feel uncomfortable about one of your kids choices, it is a good idea to limit time alone with that friend without much supervision.  

We aren't our children's friends until they are grown up enough to have adult friends.  Teens really do need parents to be parents.  A rock to cling to in a crazy world.