Do you think the mass media somehow influences the violence of teenagers

Of course, but maybe not on all, because some teens are really interested about news, but others are interested just about their own life. Teens who are interested, start to talk about it and say a lot of wrong things to their frinds and other people who they talk about. Sometimes they are foolish. I think that mass media also gives a lot of wrong information, so there are a lot of strange mindes. Как то так на скорую руку