Khat is cathinone... it's not nearly as harmless as they say on that list there. It should definitely be above Cannabis, since Khat has potential to cause physical dependence. This list is biased... and it sucks. They didn't include Crack, but included cocaine. Cocaine alone is not nearly as bad as crack-cocaine... they didn't put Meth in there, and I think meth should be #1. Then heroin. Cannabis should be one of the last few, if not the last. I don't see how it alone causes any trouble to society. But rather, the prohibition of it causes problems.