By the way, I agree with Wimmer's ultimate conclusion: that commonsense regulation of electronic cigarettes by the FDA is urgently needed. However, I don't need to lie or deceive the public in order to make that point.

While the deeming regulations pretend to acknowledge that there is "a continuum of nicotine-delivering products" in terms of their health risks, the truth is that the agency fails to acknowledge that the most hazardous product along that continuum - cigarettes - are any more hazardous than the least dangerous product (non-tobacco electronic cigarettes).

The truth is that there are major advantages and disadvantages of both surveys and clinical trials to examine the potential benefits of electronic cigarettes. Both types of study designs have inherent biases which can produce results that are more "favorable" or "unfavorable." This is why the methodology of published research needs to be examined so carefully. It is not so simple as to dismiss RCT evidence and accept survey evidence. One needs to consider the strengths and limitations inherent in both approaches. And at the end of the day, the only defensible approach, I believe, is that both types of studies are necessary, and we must carefully interpret and synthesize the findings from studies of multiple designs, using the totality of the evidence to make final judgments about the benefits of electronic cigarettes.

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 the letter: "Today Rep. Henry A. Waxman, Sen. Tom Harkin, and Rep. Peter Welch sent a letter to California Attorney General Kamala D. Harris, Iowa Attorney General Tom Miller, and Vermont Attorney General William H. Sorrell urging them to classify electronic cigarettes as cigarettes under the Tobacco Master Settlement Agreement (MSA) to prevent e-cigarette companies from targeting youth and getting them addicted to their products. ... Classifying e-cigarettes as cigarettes under the MSA would prohibit tobacco companies from targeting youth in advertising and marketing of these products."

For obvious reasons, the Glantz approach is the wrong one to take, and the Brown et al. approach is correct. This study demonstrates that when you analyze the data the proper way, it appears that electronic cigarettes -- for the right smokers -- can be an effective smoking cessation tool.

The communications director for another national anti-smoking group added: "This just goes to show that the tobacco companies have not changed. They will go to any extent to keep America's children smoking, even paying university scientists to do their dirty work for them."

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