From his recent travels to the Persian Gulf—sponsored and paid for by the State Department—Imam Faisal Abdul Rauf returned with a none-too-subtle threat. His project, the Ground Zero Mosque, would have to go on. Its cancellation would risk putting "our soldiers, our troops, our embassies and citizens under attack in the Muslim world."

Leave aside the attempt to make this project a matter of national security. The self-appointed bridge between America and the Arab-Islamic world is a false witness...