Let's examine something; We smashed the cigarette companies for promoting cigarettes because they cause sickness and lung cancer, BUT YET, We are now legalizing Pot to be smoked just about anywhere which is 10 time worse for your lungs then cigarettes will ever be and has more carcinogens then cigarettes will ever have. PA is now going to legalize it and a few more states have jumped on the ban wagon and in about 10 years or so, it'll deemed "BAD FOR YOU" then the reversal process will start. Go look at lung cancer statistics, they are already rising! Enjoy your Pot!