The "clash of civilzations" is often denied by Islamic apologists. It is, in fact, for real.
Here's the FaceBook intro from Ayaan Hirsi Ali:
Hat tip to my friend Sam Harris for posting this video - "British Islamist Anjem Choudary: Freedom and Democracy Are Idols That Must Be Destroyed and Replaced with Obedience to Allah." In my upcoming book Nomad - release date May 18th in the U.S. - I discuss how the power of Dawa – in English, that is the power of per...suasion – will decide the Clash of Civilizations. I argue that the Western world – specifically, Christians, feminists, and atheists – must use their power of Dawa to combat political Islam.