In other words, what the CDC is saying is:

Why does the Surgeon General's report not review the literature on the cancer risks of filtered vs. non-filtered cigarettes, even though it seems to draw a conclusion about this issue? The only answer I can think of is that the report aimed to draw a particular conclusion, rather than to present the facts in an objective way. Apparently, the report was pre-determined to conclude that all design changes to cigarettes increased their cancer risk. It conflated the filter with other sources of tar yield reductions and at the same time, failed to review studies that examined the relative risk of filtered vs. non-filtered cigarettes.

2. The regulations put a huge, if not insurmountable, obstacle in the way of new and innovative electronic cigarette products.

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