Instead of worrying about banning electronic cigarettes in every park, sidewalk, and beach in the country, anti-smoking groups should get back to the business of trying to reduce smoking: that means focusing on promoting smoke-free workplaces in the states that still don't offer such protection and embracing e-cigarettes as a smoking cessation and harm reduction strategy.

Remember that I did not argue that a smoker switching from a non-filtered to a filtered cigarette brand will reduce her cancer risk. It may be that vigorous compensation offsets the impact of such a change. However, I do believe that the scientific evidence supports the contention that all else being equal, a lifelong smoker of non-filtered cigarettes faces a slightly higher cancer risk than a lifelong smoker of filtered cigarettes.

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