[DiabloD3]

And then we get to the extreme paranoia where everything is generally recognized to cause cancer. And I'm not even convinced they're wrong, given the rates of cancer in people who (most likely) have never been exposed to anything (that they know of).

Although, then again, there's the problem of grandchildren of smokers getting cancer, when never having been exposed to the smoking first or second hand, only genetically through their parents.