Because tobacco companies aren't required to tell us what's in vapes, we wind up being lab rats for their dangerous, addictive products. So, let's be clear (since Big Tobacco won't be) FDA orders Juul e cigarettes off the market over safety concerns The Washington Post Juul can continue selling e cigarettes as FDA says vaping benefits outweigh risks PBS News Teen vaping 'epidemic': FDA to limit sale of sweet e cigarette flavors