Greg Campbell's new book is called <a href="http://www.barnesandnoble.com/w/pot-inc-greg-campbell/1106654759?ean=9781402779251">"Pot, Inc.: Inside Medical Marijuana, America's Most Outlaw Industry."</a> He is the author of "Flawless: Inside the Largest Diamond Heist in History," "Blood Diamonds: Tracing the Deadly Path of the World's Most Precious Stones" (the source material for the Leonardo DiCaprio movie of
the same name), and "The Road to Kosovo: A Balkan Diary." Campbell also is an award-winning journalist whose writing has appeared in the Wall Street Journal Magazine, The Economist, the San Francisco Times, Paris Match, and the Christian Science Monitor, among others. He lives in Fort Collins, CO.