weed doesnt cause the cancer, tobacco does. yes it does but you normally put tabacco in the same cigerette. it makes it taste better aparently, but i wudnt know bescause i wudnt touch the stuff. i cant even stand the smell nevermind the affects and what it does to you in the long term. Anyways, is this not a rather poinless topic as it is barely about trials. Just about weed/cannabis is it not? Hope that helped