The authors of this study make one of the most cardinal errors in all of epidemiology. They ignore the principle that "correlation does not equal causation."

While Senator Rockefeller attacks the electronic cigarette companies for targeting kids with flavored products that he claims is going to addict and harm them, he is hiding from the public the truth:

Tony Gwynn's at age 54 from repeated smokeless tobacco use is the reason why. While it is not common, traditional smokeless tobacco use is clearly associated with oral cancer. In addition, there is little evidence that as marketed and used in the United States, these products are helping a substantial proportion of smokers to stay off cigarettes.

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