The dense hills of Sinaloa, Mexico, are home to the most powerful drug lord since Pablo Escobar: Joaquin "El Chapo" Guzman. Guzman is among the world's ten most wanted men and also appeared on Forbes magazine's 2009 billionaire list. With his massive wealth, his army of professional killers, and a network of informants that reaches into the highest levels of government, catching Guzman was considered impossible--until now. Newly isolated by infighting...