Here, they find a correlation between e-cigarette use and higher and more sustained levels of smoking. But because this is a cross-sectional study, they cannot determine which came first. In other words, what is the direction of the causal relationship? Does the e-cigarette use precede, and cause, the smoking? Or does the smoking precede, and cause, the e-cigarette use?

However, the deeming regulations take away both the prospect of innovation and the incentive to introduce new products. Essentially, these regulations freeze the current market of electronic cigarettes, or at least of those electronic cigarettes which were most like the products already on the market in 2007.

1. Electronic cigarette companies cannot inform consumers that these products are safer than cigarettes, and they cannot even tell the public that they are free of tobacco.

The Senate Finance Committee will hold a hearing on the proposed electronic cigarette tax tomorrow at 4:00 pm. Hopefully, the Committee members will vote on the side of protecting the public's health rather than protecting cigarette profits.

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