This argument is fallacious, I believe, because there are many things that changed from one cohort to the next. The introduction of cigarette filters is only one such change. To assume that any observed changes in cancer risk from one cohort to the next must be attributable to one particular change - the filter - is not appropriate, in my view.

According to CDC Director Dr. Thomas Frieden, the thousands of smokers who have quit smoking via electronic cigarettes are nothing but anecdotes. As Dr. Frieden told the Los Angeles Times in , referring to smokers who have quit using e-cigarettes: "the plural of anecdote is not data."

With the exception of aluminum, the concentrations of most metals were substantially lower during vaping than in the no vaping condition. Metals therefore do not appear to be a significant health issue at this point in time.

This move will be destructive to the public's health. It will literally cause disease and death by increasing cigarette consumption. The proposed tax is high enough that it will deter many smokers from quitting by using electronic cigarettes. It may even result in some vapers returning to cigarette smoking because the economic advantage is no longer present.

In law, there is a term used to refer to what Glantz and Chapman are doing here. It is called defamation.

The rest of the story is that this research is making a mockery out of the modern-day tobacco control movement.

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