“Young people have taken a technology that was supposed to help grownups stop smoking and invented a new kind of bad habit, one that they have molded in their own image. The potential public-health benefit of the e-cigarette is being eclipsed by the unsettling prospect of a generation of children who may really love to vape.” Are e-cigarettes an effective way to get hardcore smokers to ease up on their habit, or are they one of the more troubling teen trends in a generation? In a word: Yes. From The New Yorker’s Jia Tolentino: The Promise of Vaping and the Rise of Juul.