It doesn't really matter what you or I draw from the tragedy in Norway, we're Americans, fully armed, with a higher incidence of armed assault, and I submit a fair higher incidence of crazy people on the loose. I can't even begin to imagine what my response would be as a Norwegian - but probably it wouldn't involve massive changes to anything I do. Its a different place than the US - I was there for their Constitution Day a few years back, I marched in the annual parade which took me past the Royal Palace and 40 feet from their royal family. NO bullet proof glass. NO metal detectors. It was nice, and I felt a little Norwegian that day. I gather they don't live in fear for their lives or the lives of their children, and there's the tragedy here, in that sense so many have lost loved ones in an insane man's assault on children. what a meaningless, insane, cowardly act.

Engineer to prepare for a similar act in your own locale if you want, it really doesn't matter - the key fact is that in Norway, I don't think they count it a sign of weakness to say 'we'll do no more than exact justice from this person' as a way of responding to a terrible tragedy.