AtW, I think you might be on to something, but allowing 15% of the population to regularly carry firearms, in order to create uncertainty in the minds of attackers, would never be allowed.
A better way to create uncertainty would be to allow 15% of hotels and schools to randomly arm their guests or pupils.
So you could ring up the maitre D at the Waldorf and say, 'ok, it's your week to be armed, come down to the station and pick up your armalites - NO you can't have the bazooka's, last you had those you launched a dawn raid on the ETAP, and caused several millions of pounds worth of improvements'
