I was always looking at the claim of youth ecig use doubling and thought it missed context. Appears a Michigan Prof has looked closer at the data. His claim only .7% had never smoked a cigarette. Another bust to the gateway?
http://time.com/2864214/teen-smoking-is-way-down-but-what-about-e-cigs/
http://time.com/2864214/teen-smoking-is-way-down-but-what-about-e-cigs/