Guatemala's president has advocated the international legalization of drugs. Monday's statement by the four leaders
"is an important indicator of the desire to engage in a more robust discussion of policy," said Eric Olson,
associate director of the Mexico Institute at the Woodrow Wilson International Center for Scholars in Washington. The call by the four presidents was welcomed by marijuana activists in the U.S. Forcing international review of drug policies was a stated goal of the campaigns for legalization in Colorado and Washington.