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This materials bearing on this issue seem to contain a curious
mixture of science, guesstimizations and pure fallacies. Do you
have links to any discrete, empirical, preferably-duplicated,
real-world studies concerning the causative effect of tobacco use
and lung cancer? I cannot find a single (supportable) one!

I can find plenty concerning diesel and other industrial fumes. I
can find plenty establishing the causative relationship between
tobacco use and emphysema. But zip for the same to lung cancer.

Likewise, I can find no _supported_ evidence for causation between
ETS and any disorder.

Many years ago, when I set up a web site for a county science
fair, one of the students asked me to find such a study for him so
he could come up with a project aimed at winning that county's new
tobacco-related project award. I've written everyone from WHO to
NIH to the EPA and on and on. None of them can come up with an
empirical, real-world study that eliminates any other possible
causative contaminants in the air.

Thanks!

--
Roger