The Dutch film-maker Theo Van Gogh was stabbed to death on a street in Amsterdam by an Islamist upset that Mr Van Gogh made a film about the mistreatment of women in Islam. That was a few years ago. Then there was Charlie Hebdo in Paris. Even normally tolerant Europeans are not going to put up with such venom and violence directed at the fundamentals of their free and liberal societies by fanatical Islamists for much longer. Given that hundreds of Europeans have been brutally murdered by Islamists in the past two years is it any wonder there's a backlash?