How many more terror attacks until we have a serious discussion about offending religions?

Another week and another completely random attack by a gunman hunting down cartoonists before inexplicably heading to the local synagogue. My guess is that events in Copenhagen yesterday have already been put down in many quarters to what President Obama describes as ‘a random bunch of folks’ being targeted by somebody who has ‘misunderstood’ what every Western leader agrees is an entirely peaceful and harmless religious tradition.