Former Mexico security chief pleads not guilty in U.S. case

Mexico's former top security official pleaded not guilty on Friday on charges he accepted a fortune in drug-money bribes from kingpin Joaquin "El Chapo" Guzman's notorious Sinaloa cartel to let it operate with impunity.Genaro Garcia Luna, 51, was indicted in New York on three counts of cocaine trafficking conspiracy and a false statements charge.During his brief appearance in a Brooklyn courtroom, Garcia Luna shook his head “no” as prosecutors outlined the charges against him.