Mexican drug lord Joaquin “El Chapo” Guzman said through one of his lawyers that he is ready to plead guilty to any charges filed against him in the United States, if U.S. authorities vouch for a short sentence in a medium-security prison. Guzman, who is considered the head of the Sinaloa drug cartel, is currently being held at the maximum-security El Altiplano prison in the Mexican state of Mexico.