Can vaping help wean people off cigarettes? Anti smoking advocates are sharply split : Goats and Soda : NPR Vaping vs. Smoking: Is One Really Safer Than the Other? Youth vaping, smoking & nicotine use Secondhand e cigarette aerosols expose kids to less nicotine than cigarettes, study finds, but can still be risky CNN Just How Harmful Is Vaping? More Evidence Is Emerging. The New York Times Vaping: What are the medical impacts? BBC News