They warned that the effect of cannabis on the body was equal to cigarettes but was "far more dangerous" on the mind.
I don't have any use for drugs and recommend people avoid them, but that's BS. The experience of hundreds of years strongly indicates that grass is no more harmfull than booze. It was apparently outlawed because hemp is the most natural and economical thing in the world to make paper out of and Wayerhauser and Dupont wanted it out of the way. The term the oil industry uses for the same sort of thing is "disruptive technologies".
I agree with you that pot is no worse than booze, but I think that the hemp is an economic miracle stuff is all crap. It sounds like a liberal myth to me. If it was, people in other countries would use it. If hemp was so great, they would be making paper and other stuff out of it in the Netherlands. (Of course, they do, but it costs a fortune.)