On April 8, leading Islamic scholar Tariq Ramadan addressed a packed hall at The Cooper Union, in his first appearance in the U.S. since the Bush Administration revoked his visa six years ago. Ramadan answered questions on homosexuality, religion, and the role of women in Islamic societies. He was on the defensive when New Yorker writer George Packer accused him of "whitewashing" history. And he used the platform to call for humility and respect among Muslims in the West and in Europe.