@engineer,
Don't talk to me about engineers. My apartment's AC has been sucking for years now.
On the point of anectdotal evidence, I think the only way to draw solid conclusions about them is by reading crime statistics and correlating them with the level of gun control. The best study that I know of in this line of research is a publication by the National Academy of Sciences. The reference is Wellford, Pepper, and Petrie (eds):
Firearms and Violence: A Critical Review. National Academies Press (2004). The NAS has published it as an open book
here. Their bottom line is that the data isn't supporting any solid conclusions either way: Contrary to an earlier much-cited publication by John Lott, they find that more guns
don't, in fact, equal less crime. But they also fail to find conclusive evidence that greater
gun control leads to less crime.
Given that the best look people have taken at the data fails to support either side, I would caution against any susbstantial increase of gun control. After all, under the constitutions of the US and almost all its states, Americans have the right to keep and bear arms that "shall not be infringed". So let's not infringe it -- unless we
know we're endangering other constitutional rights by doing so.