MEXICO CITY (Reuters) - Mexico has captured a leader of the country's Gulf Cartel in one of the highest-profile arrests in months in President Felipe Calderon's war on drug gangs.

Mexican marines escort Mario Cardenas Guillen (R), alias ''El Gordo or El M-1'', as he is presented to the media in Mexico City September 4, 2012.
Credit: Reuters/Henry Romero
By Lizbeth Diaz and David Alire Garcia
MEXICO CITY | Wed Sep 5, 2012 12:01am EDT