Tariq Ramadan has been called the Muslim Martin Luther King, and he's often described as Europe's most important Muslim intellectual. Hundreds of young Muslims turn up at his talks, and tapes of his lectures are widely circulated. He travels throughout the Islamic world, trying to build bridges between European Muslims and conservative clerics. But some countries, including the United States, have banned Ramadan. In this hour of To the Best of Our Knowledge we'll talk with Tariq Ramadan.