The pope blinked. He picked a fight with Islam. Then he gave Islam a victory. All of this was unnecessary. Pope Benedict XVI, an erudite theologian, decided he needed to play an academic game with Islam. In furtherance of open dialogue between world religions, he decided it would be helpful to quote a 14th-century Byzantine emperor’s disparagement of Mohammad. The Islamic world, apparently lacking the pope’s sophistication, responded violently. The Islamic world still operates on a 14th-century paradigm. In the Palestinian areas, Muslims started burning churches. Priests disappeared in Baghdad. There were Catholic priests still operating freely in Baghdad?A nun,...