NEW : Central American countries will debate drug legalization on October 15 . Joe Biden says he supports debate over drug legalization , but U.S. wo n't change stance . The vice president says the U.S. shares responsibility for security issues in the region . Guatemala 's president has said he supports decriminalization measures .
NEW : Central American leaders will debate drug legalization on March 24 . Joe Biden says he supports debate over drug legalization , but U.S. wo n't change stance . The vice president says the U.S. shares responsibility for security problems in the region . Guatemala 's president has said he supports decriminalization measures .