People do bat an eye in Canadian cities... the trouble is that if you attack a mall in Canada you're almost guaranteed not to encounter armed resistance until the cops show up. There are no armed guards, and there are no armed citizens.
Not intended to start a gun control debate... just stating facts.
I meant in a broader sense. Getting pulled over with a rifle isn't as bad as getting pulled over with chemical weapons. Terrorists are starting to try less spectacular attacks in favor of the constant threat of shootings.