I stand by my (100% non-scientific) position that smoking bans would never have gained traction if cigarette smoke didn't smell. When all of this was being discussed in a serious manner, that was what I always heard in the background chatter, well more often than "it's unhealthy." If cigarette smoke smelled pleasant or had no odor, the bans would never have had enough support to get pushed through. I still don't support smoking bans in private businesses. I think as long as the business is up front and only hires employees that are okay with it, they should be allowed to decide whether their customers can consume a totally legal product in their place of business. Is it unhealthy? Absolutely. But the government should allow people to decide for themselves whether they want to take that risk.