It is important to point out that just because the relative risk of cancer associated with filtered cigarettes is lower than that for non-filtered cigarettes, it does not necessarily follow that switching from a non-filtered to a filtered cigarette will reduce one's health risks. It is possible that smokers who make such a switch will compensate because they are used to higher tar levels. It is possible that the observed reduction in cancer risk only holds for lifelong filtered cigarette smokers, as they do not compensate (they never smoked non-filtered cigarettes). In fact, the scientific evidence supports this contention.

How is it that anti-smoking advocates and health groups, including the state's physicians, could possibly oppose a simple ban on the sale of e-cigarettes to minors?

The rest of the story is that in a tragic reversal of the historical functions of public health viz a viz industry, it is now the e-cigarette companies that are attempting to undermine cigarette smoking while the health groups, led by CDC and FDA, are protecting the cigarette market by undermining the anti-smoking messages from the e-cigarette industry.

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