Michigan just started the process to get smoking banned in most public places. The momentum for this, as usual, comes from the fact that secondary smoke is a killer. But is it? The majority of people seem to think 'yes'. Others are unsure but the media carries so many reports that say 'yes' that it almost drowns out any reasonable conversation, particularly when combined with the screams of the anti smoking lobby, who seem in most cases to feel that anyone who says no, is unsure, or maintains an open mind must be either a closed minded smoker, a tobacco lobbyist / big tobacco employee, or a simpleton. To be clear, none of the above describes me (with the possible exception of simpleton). So, I thought I'd start a thread to find out what facts people have about tobacco and the health impact it has on non smokers. For clarity, (and for the reference of one or two posters in particular), I'm not talking about how it smells. I'm not talking about it making your eyes sting, or your clothes or hair smell. And I'm not asking for personal anecdotal evidence (which is no evidence at all). I'm talking only about whether or not secondary (not primary) smoke is the indiscriminate killer it is said to be, and that there is a sound statistical basis for this conclusion. I'll take a while, look into any 'facts' provided and respond as soon as possible. In the absence of any facts, I will have to assume that the anti lobby are unable to prove the basis for the current swathe of legislation. If it can be proved, I will be the first one to agree with a ban on smoking in public places. At present, I maintain an open mind on this issue. So, with that in mind, can anyone give me a fact about the health impacts of secondhand smoke?