Hitchens genuinely believes radical or jihadist Islam to be an existential threat to civilisation. First because it is a pronounced enemy of free speech and social liberty and has succeeded in intimidating and silencing civilians across "an extraordinary number of countries in Europe" and the rest of the world. And second, he says, "because it has potential access to weapons of mass destruction." In the end, he argues, there are no pain-free options. You have to choose which future regret you're going to have. "His intemperate style is not to everyone's tastes, but as he has often remarked, you can't produce light without heat."