Last month the U.S. government canceled a visa that it had granted to Tariq Ramadan, a Muslim scholar in Switzerland. The visa, which had been approved in March and would have allowed him to accept a tenured professorship at the University of Notre Dame, was revoked at the request of the Homeland Security Department. No explanation has been given, but a department spokesman cited “public-safety or national-security risks” as the usual reasons for such an action. Tariq Ramadan, 42, is a professor of Islamic studies and philosophy at the University of Fribourg, in Switzerland. He will respond to questions and…
