According to the letter: "Today Rep. Henry A. Waxman, Sen. Tom Harkin, and Rep. Peter Welch sent a letter to California Attorney General Kamala D. Harris, Iowa Attorney General Tom Miller, and Vermont Attorney General William H. Sorrell urging them to classify electronic cigarettes as cigarettes under the Tobacco Master Settlement Agreement (MSA) to prevent e-cigarette companies from targeting youth and getting them addicted to their products. ... Classifying e-cigarettes as cigarettes under the MSA would prohibit tobacco companies from targeting youth in advertising and marketing of these products."

It's not clear to me why researchers who oppose electronic cigarettes are so anxious to condemn these products that they are willing to use inappropriate research designs to fulfill such an aim.

But is there any truth to the assertion that electronic cigarettes are a gateway to youth smoking? New evidence from the UK suggests not. Despite the widespread proliferation of electronic cigarettes throughout England during the past few years, and a concomitant increase in youth experimentation with these products, smoking rates among 11 to 15-year olds has declined to an of just 3%.

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