Question this raises, for the regular pot smokers.
Let's say it is fully legalized, and then there are all kinds of studies done in the light of full disclosure. And let's say that study after study proves without doubt that weed is bad for you (pick a way, but bad for you nonetheless). Will that change your attitude toward it?
I don't use tobacco nor marijuana, I do have a drink every few months. I would say that the effects would have to considerably worse than alcohol or tobacco to make criminalization worthwhile.