Those studies are pathetic and PURE propaganda!!!! Tobacco is a carcinogenic plant containing Radium and Polonium in it's leaves. That's right... RADIUM And POLONIUM!!!! What is a great way to kill someone... hmmm... I would take as many old and used ashtrays I could from a bar and scrape off the tar and reduce it by boiling to a lethal, black resin that you could dip a dart into and just hit someone in the neck with it, or better yet, put it on a wire and jab it into the kidneys... this will KILL anyone with Nicotine poisoning being the cause of death revealed by an autopsy. YOU CANNOT DO THAT WITH MARIJUANA... I couldn't kill anyone with marijuana resin.
Marijuana is how I commune with God on a daily basis, cigarettes are poison... I will outlive ANY cigarette smoker with my daily marijuana use, plus pot smokers (who don't smoke cigarettes) usually expell the resin in their lungs as it is put in the body (not pretty! lol!), marijuna acts as an expectorant, tobacco just destroys and hampers the processes of the lungs. These cigarette comparison studies are a JOKE, they have absolutely NO merit!!!!!!!