POV: FDA Restricts Flavored E cigarettes, but Not the Real Killers. Huh? BU Today Boston University E liquides pour cigarette lectronique Saveurs fruites, classiques & gourmands E Cigarettes and Vaping Tear Pad Health Edco No Smoking Electronic Cigarettes Allowed Prohibition Signs Safety Signs Safety Signs 4 Less New study comes the closest yet to proving that e cigarettes aren't as dangerous as smoking