Interesting article at Rebelión by P. Siris (in Spanish). The author, based on figures of the UN office on Drugs and Crime, notices that USA is by large the greatest consumer of cocaine (45% of the world total) and also a major producer of illegal drugs like marihuana (20% of the world's total, using more land than for maize).
Even more significatively, Siris notices that the number of drug seizures in the North American country has dropped massively in the last decade and now only ammounts to 24% of the world's total, very low considering the huge relevance of the USA as drugs' consumer. Furthermore, the vast majority of world's cocaine production (60%) happens in Colombia, a US protectorate (and certainly not in jungle areas controlled by the guerrilla), while almost all global opiate production is in Afghanistan (96%) , another US occupied country.
Nevertheless, the USA dares to patronize countries like Bolivia, Venezuela and Myanmar (Bolivia and Myanmar are secondary producers of coca and opium respectively, Venezuela is not any major producer of anything) on this issue, while ignoring the Colombia, Peru (second global producer of coca and cocaine) and Afghanistan, as well as other major hubs of drug trafficking like Pakistan, Iran, Turkey, the European Union and the very United States.
Siris argues that the USA is not just the largest drug consumer of the world but that it also controls the production of most of these substances and is the benefitiary of the benefit in the narcotraffic business.