[RedBloodedAmerican]

With their cancer they could find where it started, so they knew it started in the lung. And from the type of cancer it was, they knew it was not a result of asbestos and somehow started as a result of tobacco. I did not talk to the oncologist treating them, so I don't know the medical jargon and details.

I am surprised that you, being a physician, would ask that and not know the basics of cancer - ability to know its source and cause.

[metesky]

Nobody knows the source or cause of cancer, which is why there is no death certificate stating SHS.

[boop]

I DO know the "basics" of cancer. Not all cancer of the lung is caused by smoking. People who live in large cities, and who have basements with radon also have higher rates of lung ca. Children get lung ca, even though they have been exposed to this earth for only a few years. Fact is we can only talk about increased RISKS for cancer. We havent found the CAUSE yet. If we knew that we could figure out why only 1 out of six smokers will die from a smoking related disease. I don't think you'll find anyone who will deny that cigarette smoking increases RISK in a smoker. But the RISK increase in a nonsmoker from ETS just isn't there. I can appreciate the reason behind non-smoking zealots trying to ban public smoking. They simply "don't like" smoking, and will lie, distort, demonize,and use the police power of government to eliminate that which they "don't like".