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.

The finding of reduced exhaled nitric oxide is an indication that an exposure is causing some sort of inflammatory effect on cells lining the respiratory tract. It doesn't mean anything more or less than that. You can't take two exposures - each of which causes respiratory tract inflammation - and make the statement that the effects of both exposures are equal. Risk posed by an exposure depends on many other factors, including the degree of inflammation induced, the reversibility of the effect, the nature of the exposure, the chronicity of the exposure, etc.

After blasting electronic cigarettes, the author writes:

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