Does anyone have an updated version on what U.S. airports you are allowed to vape in. I just got harassed at Las Vegas McCarran airport and it ...... me off. I've seen the article from U.S.A. Today and Las Vegas was listed as one of five that allowed vaping. I've talked to some people that work for the Department of Aviation and some say yes and some say know. Im just looking for a definitive and reliable source.