I don't think seeing violence, whether in TV, video games, or even in real life can cause the viewer to become violent. People love to ignore the
context of the violence. Will playing as a marine escaping a
Nazi concentration camp and shooting Nazis in self-defense cause me to go shooting defenseless innocent high school students?
Well duh, of course not.
And even if a game or movie involved a student shooting other students, I hope that any child over 5, and most certainly 18 year olds like
Eric Harris have been taught enough to know that shooting real humans is
BAD.
And if they haven't been taught that? Then you're gonna have a scary situation on your hands
no matter what that child's hobbies are.
Preaching to the converted is fun and easy... you're practically guaranteed votes!