George W. Bush and others have often emphasized that Islam is a "religion of peace." Others view Islam as a "religion of the sword," and they include traditionalist-minded Muslims and mosques. This is evident after the French government recently raided Muslim houses of worship in the country and found "one third of the quantity of war-grade weapons that are normally seized in a year," as Interior Minister Bernard Cazeneuve put it. The mosques implicated themselves "because they are run illegally without proper licenses, they preach hatred, or use takfiri speech," Hassan El Alaoui, one of France's chief imams, told Al...