So, the link between passive smoking and health may not be proved.
I find it pretty hard to believe there are no effects, but as others have said, you'll be able to dig up quotes and figures to back up either side.
But if there's a possible link, (and IMO, a very likely one), then shouldn't we be taking these steps just in case?
I'm generaly for freedom of choice, and the idea of taking action where you ban something "just in case" would normaly tend to make me cringe. But the fact that this is even possible (though MOre like "probable

), should be reason enough to take some steps.
The freedom of choice should be weighted with those who don't want this probable risk.
I'm sure research will continue. I'm sure the tobacco industry, who have no doubt got plenty of knowledge already, will be very eager to prove how bollox passive sMOking is

Infact, with the potential hit their profits could take, I'd imagine they'd be throwing MOney at the research to prove it asap!
So, besides all the other effects (smell, rough throat, stinging eyes etc...), shouldn't it therefore be with what the, apparant, majority of people who would prefer steps were taken?
Also, for those who say they doubt it's effects due to lack of undeniable proof....
If you have young kids of your own, or other young relatives, (In Ian's case it'll probably be Great Great Great Great Grandchildren), would you be happy to puff away infront of them? Safe in the knowledge that there's no undeniable proof of course.