A look at the numbers.
A Mexican study says legalizing marijuana for recreational use in the US - an issue on the ballot in three US states - could cut the proceeds of Mexican drug gangs by 30 percent.
A police chief is accused of organizing a pay-out scheme with local drug traffickers. With rampant police corruption, Argentina may be ill-prepared for the rise of powerful trafficking organizations.
The silence of America's top law enforcement officials – President Obama and Attorney General Eric Holder – on three state votes to legalize marijuana is puzzling. If any of the measures pass, it will cause a constitutional crisis as well as a dangerous jump in pot use.