JACK CARAVELLI is one of America's leading experts on nonproliferation and nuclear terrorism. He is a Senior Visiting Fellow at the U.K. Defence Academy and Visiting Professor at Cranfield University. He was Deputy Assistant Secretary at the U.S. Department of Energy (2000-2003), and he served on the White House National Security Council (1996-2000), where he was the president's principal advisor for nonproliferation policies and programs involving Russia and the Middle East. He began his governmental career in 1982 at the Central Intelligence Agency. Caravelli is a Chatham House Fellow and me...