[Bogey]

Where I disagree with you is not mentioning the rate of lung cancer in non smokers. There are plenty. Autopsies aren't even performed for lung cancer unless your a smoker.
My mother in laws would have never been even looked for if other complications hadn't arisen.
She was as furious as we were. This is shoddy medicine, and I'm sure there are thousands of undiagnoised lung cancer cases in non smokers.
Last but not least, lock yourself in your garage with your car started for about 60 minutes.
You honestly think auto emmissions play no effect on lungs.
As I said before, my mother in law was an avid runner with lung cancer. Her doctor said she's not the first runner he's seen it in. Where do you think they got it?
Sadly, more will die like her. Why? Because blaming lung cancer solely on cigarettes doesn't inconvience the masses into parking their cars.

[Ditter]

I can't imagine what backwater you live in that lets people get sick & die without even knowing that they have lung cancer. I never said that smoking was the only thing that causes lung disease. My daughter-in-law's mother died of lung cancer & was a non smoker. The cancer spread from another area but she was listed as dying from lung cancer because that is what killed her.