For me this is a bit strange.. is it common in the US to carry a gun for personal defense?
Here in Norway, not even the police carry weapons. (unless there is a situation where the criminals are using it)
It's not ilegal to carry legal wepons, but I never heard about anyone carrying firearm for defense reasons.
(There is one exeption where weapons are used under police duristiction at all times. I few years ago I worked as a border gard patruling the russian border. We used weapons as A3, G3, MP5, Glock, Carl Gustaf (recoil free cannon) and 12.7 sniper rifles)
btw.: After the 9/11 terror, explosives are about the be baned on public transportation here in Norway as well. Dough I find it a bit strange if somebody with a bag full of TNT actualy uses the buss on the way to job