Dr. Tawfik Hamid doesn't tell people where he lives. Not the street, not the city, not even the country. It's safer that way. It's only the letters of testimony from some of the highest intelligence officers in the Western world that enable him to move freely. This medical doctor, author and activist once was a member of Egypt's Al-Gama'a al-Islamiyya (Arabic for "the Islamic Group"), a banned terrorist organization. He was trained under Ayman al-Zawahiri, the bearded jihadi who appears in Bin Laden's videos, telling the world that Islamic violence will stop only once we all become Muslims. He's a...