Cannabis was condemned by the 1961 Single Convention on Narcotic Drugs as a psychoactive drug with “particularly dangerous properties” and hardly any therapeutic value. Ever since, an increasing number of countries have shown discomfort with the treaty regime’s strictures through soft defections, stretching its legal flexibility to sometimes questionable limits.
Some 20 years ago, a Spanish official in favor of lifting the ban on drugs such as marijuana mentioned at a UN meeting that there "might be a more humane option" in the fight against trafficking. She was immediately taken aside by a senior diplomat, who told her in no uncertain terms: "Don't say things like that round here, not even in the washroom." Today, the same official says that internal documents are now circulating within the UN that openly admit to the failure of prohibition.