Cigarette vendors are using electronic cigarette technology in a bid to appeal to the mainstream consumer.
The industry is being helped by a growing number of medical experts who have expressed skepticism about the safety of e-cigarettes.
The FDA says e-cigarette use is safe, and the Electronic Cigarette Products Association has argued that electronic cigarettes contain less carcinogens than regular cigarettes.
But some scientists say e-cig makers have a history of misleading the public and misleading regulators.
We asked five experts who specialize in tobacco products and health policy about the dangers of e cigarette use and the potential impact of electronic cigarette regulation.
(The Washington Post)