One of America's leading authorities on European Islam has made a rather nuanced and unusual contribution to this conversation. Writing in the Frankfurter Allgemeine Zeitung in response to a column asserting that "terrorism has a lot to do with Islam", Jonathan Laurence argues (link to English translation) that the present-day pathologies of European Islam are a kind of aftershock from a century-old mistake. Or rather, of a short-sighted policy that went into higher gear almost exactly 100 years ago. In the summer of 1916, the British government and its war allies began fomenting an Arab revolt against the political and above all, spiritual authority of the Ottomans. This brought about the British-led capture of Jerusalem and the collapse of Ottoman dominion over Islam's holiest places, whether in the Levant or Arabia. As an alternative to Ottoman rule over the Arabs, the British initially backed the Hashemite dynasty which still reigns over Jordan; but the ultimate beneficiary was the royal house of Saud which took over Mecca and Medina in 1924.