Is vaping the most powerful weapon we have against lung cancer? Cancer Prevention and Screening Blog Governments around the world must take decisive action to crack down on e cigarettes and ban flavored vapes, the World Health Organization said Thursday, warning they must be treated in line with other Switching from Smoking to E Cigarettes Reduces Carcinogenic Exposure: E cigarette marketing in the UK The smokefree generation and youth vaping: What today's news means