In other words, while the policy allows Facebook to collect and use user information for research purposes, it does not allow Facebook to conduct interventions in which it manipulates feeds shared with users in order to try to control their emotions as part of a research experiment.

Instead, in 2014, it is the electronic cigarette companies which are sending the anti-smoking messages and the health groups which are undermining those messages.

If the FDA goes ahead with its proposal to subject electronic cigarettes to section 911 of the Family Smoking Prevention and Tobacco Control Act, e-cigarettes will become the first such product.

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