Here's more details of some of the crap in cigarette smoke:
http://www.whudafxup.com/?ref=truthsite
Listen, you guys can keep finding/making all the rationalizations you want or need to keep doing whatever you want to do. To YOURSELF. I don't want to breathe it, step on the discarded butts, smell it or smell like YOU. So keep it to yourself. I've seen what smoking can do to someone's health up close and personal and I'm telling you, it's not pretty. You can take that to heart or not, it's up to you. But remember, too, that it's not only "just" lung cancer that could be the beginning of the end for you, it's just your compromised lungs in and of themselves that could be the problem. I have yet another relative in ICU as we speak, heavy smoker, doesn't have cancer, but needed to have surgery for something heart-related and his lungs didn't recover well from the anesthesia. That started off a chain of reactions and all of a sudden all kinds of things are rearing their ugly heads. The drs. say that's common, the body can often "mask" hidden dangers while you're "healthy", but once given the chance to thrive when your body is weakened for whatever reason, then things start to go south.
So based on my experience, I believe that there is no "safe" level of exposure to smoke, first or second-hand. And I have the right to protect MY health since I choose not to smoke. I don't want to suck your gross smokey leftovers into MY clean lungs. How is that not a reasonable desire on a nonsmoker's part?
Plus they're so damn expensive these days. How does anyone even afford that habit?
ETA: sorry, I thought the link would go right to the "facts" page I was on; you have to select it from the menu on the left