And, once again,  changing the subject doesn't refute the two articles which were posted.  Is this 'bait and switch' or 'strawman'?  Either way it doesn't work.  

"If you stay in the sun too long you get a sunburn" is not refuted by responding, "But you get burnt much worse if you stick your hand in a fire."  

Once again those who love pot can't admit it has any deleterious effects whatsoever.   You and OS are the prime examples of that and have been as long as I've been reading your posts.  OS always demands links on a subject and then goes into denial when links are posted in response.  You both have those predictable patterns.