Amid all the outrage–especially from the U.S. side of the border–over the prison escape of Mexico’s notorious drug-cartel leader Joaquín”El Chapo” Guzmán, there is a blunt, often overlooked reality. Without the obscenely ever-ratcheting American market for cocaine and heroin, there would be no “El Chapo”–and somebody else would top Chicago’s “Public Enemy” list.