Does marijuana make people violent? Washington state’s murder and assault rate surged 40% after drug was legalized – and experts insist that’s not a coincidence

A new book claims that marijuana causes aggression, psychosis, suicides, violence – and that its legalization in Washington even triggered a 40 percent increase in murder rates.

There is little concrete information about the drug’s benefits (despite plenty of claims) because its illegality has made it difficult to study.

But according to former New York Times reporter Alex Berenson, there is clear evidence that marijuana is not as safe – and certainly not as curative – as the pro-cannabis groups would have us believe.