ADRIAN LEVY and CATHERINE SCOTT-CLARK are award-winning investigative journalists who worked as staff writers and foreign correspondents for the Sunday Times of London for 7 years before joining the Guardian as senior correspondents. They are the authors of The Amber Room: The Fate of the World's Greatest Lost Treasure and The Stone of Heaven: Unearthing the Secret History of Imperial Green Jade, and their newest, DECEPTION: Pakistan, the US, and the Secret Trade in Nuclear Weapons. They have reported from South Asia for more than a decade, and now live in London and in France.