As terrible as that sounds, we would probably have to go through a period of total societal **** to find out if it has any appreciable affect for the greater good. What we do know already, is this current **** policy needs no further lab time!
I'm with the; "let's try something/anything else" crowd.
I hear ya, I just wasn't sure if some studies had been done in those countries who has already tried the legalization option.