That kind validation for guns doesn't really work. You fail to consider that if guns were more readily available then there's a good possibility that also the perpetrators could have gotten guns and caused much more carnage before being stopped.
Looking at the statistics would argue that Britain is doing much better in preventing homicides than USA.
http://en.wikipedia.org/wiki/List_of..._homicide_rate
Good points. I guess what mostly baffles us foreigners is that we can't really see any need for carrying guns for personal protection, and would probably feel less safe if "everyone" were to carry one.