Tariq Ramadan, the grandson of Hassan al-Banna, founder of the Muslim Brotherhood, is a philosopher and leading spokesman for Muslims in Europe. Famously, the U.S. has denied him a visa to come to American to teach at the University of Notre Dame. His most recent book is "Western Muslims and the Future of Islam" (Oxford University Press, 2003). He spoke with Nathan Gardels from Switzerland. Ramadan argues that the Danish cartoon controversy is not a matter of free speech, but civic responsibility.