I am all for continued testing of everything, to make it as safe as it possibly can be. Everything can always be improved. What I am not for, however, is the government wholesale banning e-cigs, flavored nic juice, etc., when it has always been about harm reduction in comparison to smoking cigarettes. And for that, it has been a miracle, at least for me.
If the government really cared about our health, seems to me, they would have long ago demanded that cigarette-makers remove every dang chemical in there, leaving only the tobacco.