The problem with this type of issue is that the topic is complex, it is hard to get anything like clean evidence, people start with strong opinions, and attempts at careful analysis immediately get derailed. We could try to reduce it to its component parts. But that fails, as Calvin points out at <a href="http://www.myconfinedspace.com/wp-content/uploads/2007/04/image_ed7vv0.gif?9d7bd4" rel="nofollow">http://www.myconfinedspace.com/wp-content/uploads/2007/04/im...</a>.<p>But that said, here are my personal beliefs:<p>- Exposure to violence in mass media (including games) is probably correlated with overall violence in life across all of society.<p>- The individual correlation is very, very small.<p>- There are widespread confusions about cause and correlation that come up over and over again.<p>- Long term comparisons have trouble dealing with the confounding influence of a long-term decrease in violence in our society, with possible causes from changing mores to reduced lead to parents not resorting to corporal violence to who knows what.<p>- No simple correlation exists between levels of gun ownership and violence in a society.<p>- The "assault weapons" (yeah, that term is not well defined) that get used in high profile mass shootings are, on the whole, less often used in crime or to kill people than handguns. Even if a ban was effective, it would be unlikely to produce any noticeable effect.<p>- There is no way that, given how polarized our politics are, that anything resembling an assault weapon ban is getting through this Congress.<p>- The Supreme Court in <i>Heller</i> made it clear that governments have limited power to regulate the kinds of arms that are available, but has not ruled on what those limits are. There is a real possibility that assault weapons bans, like the one that just passed in New York, are going to be struck down on constitutional grounds.<p>I now return you to your regularly scheduled argument...