Is marijuana more dangerous than tobacco?

Is marijuana more dangerous than tobacco?

Certainly when it comes to lung cancer, I think the consensus opinion now is that marijuana is less dangerous than tobacco. In terms of the temporary neuro-cognitive effects perhaps it is more serious than tobacco but less serious than alcohol in interfering with coordination and ability to drive safely. So I really think that if legalized and regulated, it would have to include statutes that an individual not be allowed to drive while intoxicated on marijuana. And we'll probably find that peeing into the cup would replace breathing into the breathalyzer.