So while the FDA, the ATF, and leagues of scientists from the Institute for Tobacco Studies have not found a singe contributing factor, and instead have found e

So while the FDA, the ATF, and leagues of scientists from the Institute for Tobacco Studies have not found a singe contributing factor, and instead have found evidence to suggest that lung cancer may be caused by a conjunction of many different causes -- you are here announcing to all of us that It's not a mystery, cigarettes cause lung cancer?