I support the right of people to be able to go wherever they want and not be exposed to smoke, to not have their kids playing atound people smoking, to be able to open their windows on a nice day and not have the smell of smoke coming in the window, and to be able to go for a walk and not feel like you have to walk around people that are smoking.
I'm sure there will be more studies about what is safe. But I don't want to be a participant in the study.