This weekend, Mario Vargas Llosa, winner of this year’s Nobel Prize for Literature, joined a growing number of Latin American leaders, academics, and artists in calling for an end to failed prohibition policies: “[Legalization] is the only solution," said the author. "Drug trafficking can not be defeated by military means.” It seems strange that such well-respected members of Latin American society are more and more willing to come out in favor of reform, while here in the States, most public officials…