Maajid Nawaz - Chairman of Quilliam (counter extremisim organisation)
Maajid Nawaz is a British born Muslim who became a radical Islamist. He was arrested and imprisoned in Hosni Mubarak's Egypt, but when he emerged from prison he renounced his former views and launched a campaign to counter Islamist ideology. To some he is a truth teller, to others a traitor. Stephen Sackur asks him to explain his extraordinary transformation.