E cigarettes' effect on public health an open question, which the FDA will try to answer Los Angeles Times Which Smoking Habit Puts You Most at Risk? Vape 'em if you got 'em: Jails sell e cigarettes to inmates Fox News What Does Vaping Do to Your Lungs? Johns Hopkins Medicine When People Both Vape and Smoke, They Don't Swap Cigarettes for E Cigs Are vape pens, or e cigarettes, ever the better option? Ohio State Health & Discovery