I just came across this article in Business Week, generally bemoaning the fact that Obama did nothing to further gun control and we're unlikely to see any gun control happening in the near future, regardless of who wins the election. http://www.businessweek.com/articles/2012-10-17/the-obama-romney-assault-weapons-duel But the most interesting paragraph was off on a bit of a tangent: No one? The "shall-issue" freight train really started to pick up steam right at the beginning of the 90's. The number of people legally carrying firearms has skyrocketed since then. Is it true that nobody has been able to make a simple causal connection between record numbers of legally carried firearms and a staggering drop in murders by firearm? If not, how come? If so, any links to the research? It seems almost too obvious what the connection is. Do we really need researchers and criminologists to write it out for us before we recognize its obviousness? By "we", I don't mean people on this forum, who I'm sure are the choir in this case, but this seems like something that would really slam a few nails in the coffin of gun control if it were more widely known and understood.