A third major advantage of a clinical trial is that conditions are controlled as carefully as possible, minimizing potential biases. Both sampling and measurement bias are greatly reduced, if not eliminated. In contrast, survey studies are generally subject to significant sampling and measurement bias.

Today, I reveal that the CDC's Office on Smoking and Health (OSH) - the lead agency that produces the report - is apparently intentionally hiding the conflicts of interest. In other words, OSH knows about these conflicts but has apparently decided not to share this information with the public. That is, OSH is intentionally hiding these conflicts from the public.

I doubt that the smoke levels in New Jersey parks were anything like the levels that are being experienced by the tens of thousands of the state's casino workers.

So why would Governor Chafee want to place a heavy tax on electronic cigarettes, and thus shift sales away from the fake cigarettes and toward the real ones?

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