Mexico says Sean Penn meeting was 'essential' to finding kingpin Chapo

By Dave Graham and Anahi Rama LOS MOCHIS, Mexico (Reuters) - A secret meeting Hollywood star Sean Penn held with the world's most-wanted drug boss, Joaquin "El Chapo" Guzman, to discuss a magazine article was essential to finding the fugitive, Mexico's attorney general said on Monday. Guzman, head of the Sinaloa drug cartel, was captured on Friday following a months-long manhunt after he tunnelled out of a Mexican maximum security prison in July. Mexico has said it plans to extradite him to the United States, where he is wanted for exporting hundreds of tonnes of cocaine, methamphetamine and heroin across the border.