Argument: War on Drugs is too ineffective to justify costs
Andres Oppenheimer. "Commentary: What has the 'War on Drugs' truly accomplished?" Miami Herald. March 11, 2010: "after spending more than $14 billion from U.S. taxpayers over the past four decades in Colombia, Bolivia, Peru, Mexico and other countries in the region, Latin America continues to be the largest exporter of cocaine and marijuana to the United States."