I don't really think 55 would save that many lives today. I think it would lead to more distracted driving. Note that getting rid of the 55 MPH speed limit in 1995 doesn't seem to have had much of an effect on traffic deaths. https://en.wikipedia.org/wiki/Trans..._VMT,_per_capita,_and_total_annual_deaths.png [/img]
When I'm sitting on a bus I do not want to inhale the discarded smoke of the six foot six geezer sitting next to me. Thankfully I don't have to ask him to refrain. It boils down to shared 'space' and cigarette's etc have lost big time. Non addictive vaping will be up against the same anti smoking lobby. The smoke is the issue, what's in it doesn't matter. Get rid of the 'smoke' problem solved. The final verdict on the health impacts of vaping is some way off and those who make use of it to give up cigarette's, well done.