Edited sentence: ) PS Of course sucking radioactivity into your lungs ain't the smartest, but then again loading it into your mouth, gut, but ain't a high IQ pasttime either.By the way, nonsmokers usually die with pink lungs as do smokers - unless of course they get lung cancer.Cancer patients who have never smoked die with - quess - yup black lungs ( necrosis and alot of other junk you don't want to know about.Cancer turns lungs black - it is not the accumulation of tar, period.It's all BS.Nothing accumulates in your lungs.Pick your poison.Sorry, more wiki baloney.The majority of carcinogens in tobacco are the same ones in anything else we eat - growers in the USA use fertilizer that is high in radioactive material ( just bad luck - could be fixed but food would cost more and we might not get all we want - bitching decision ain't it) ( organically grown stuff probably is free of most radioactivity but I personally can't afford to buy enough calories from our hippy farmers to not starve.We have all seen the pink vs black lung photos and some have even been forced to attend meetings and nod agreeingly