...e-cigarettes that is:
In smokers not intending to quit, the use of e-cigarettes, with or without nicotine, decreased cigarette consumption and elicited enduring tobacco abstinence without causing significant side effects.
This is proper science showing how effective electronic cigarettes are as a means of quitting. And the health fascists, public health obsessives and new puritans want to stop you using them because there might be some unspecified, unknown way in which they aren't 'safe'.
It isn't about health. It's about control.