The U.N.'s "drugs watchdog" (who knew there was such a thing?) has said that 'cannabis' is now "as harmful as heroin and cocaine due to a "major increase in the potency".
"Cannabis had become more potent in the past few decades and governments that maintained inadequate policies got the "drug problem they deserve", Mr. Costa said in the 2006 World Drug Report.
"Policy reversals leave young people confused as to just how dangerous cannabis is," he added." The cannabis pandemic, like other challenges to public health, requires consensus, a consistent commitment across the political spectrum and by society at large."
He warned governments against playing party politics with the classification of cannabis as its harmful effects were "no longer that different" to the damage caused by cocaine and heroin. His remarks were made on UN Day Against Drug Abuse and Illicit Trafficking. " (source)
All I will add is this: If you've ever been to Amsterdam --there is no way you can disagree with the danger of the potency... Just sayin'.
(Great Video: Clinton's Dorm 1965)