"Think cannabis is harmless?" No. Does anyone?

But what about propagating drug hysteria? Is that harmless?
23 October 2013
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Cannabis is associated with psychosis (a symptom) and schizophrenia (an illness where this symptom is persistent) in complex, contradictory and mysterious ways. The evidence does demonstrate various links that we all should all be aware of, especially cannabis users and parents. However, the evidence does not support anything like the level of fear propagated in the media.

Independent Scientific Committee on Drugs (UK)
Thursday, October 24, 2013