When you talk about gun regulation, although I would advocate that because that's what I believe, you're bumping up against the Second Amendment even though the interpretation may be misguided. We don't want to say it's all to blame. We know that it's not watching violent movies and videos because if that was the predominant cause, everybody who watched these things would be killing people. But we have to start looking at the root causes of these things. The difficulty we have is that movies and videos and music is visible.
Guns are visible.
We can see them there. So we tend to look at those as being predominant factors. We can't see the brain. The brain is not something we can see. But we know based on all the research we have, that the brain organizes itself in a certain use-dependent way.