for a gazillion years smokers said hey it didnt kill me therefore
smoking is safe, blamimg lung cancer and other nasties on other
things.........

today we know for a FACT that smoking KILLS, fact is big tobacco knew
and covered it up for many years

Big tobacco did their own studies.

treated wood manufacturers did their own studies, its highly possible
they proved the hazards.

now would they admit it??? heavens know that will just bring on
lawsuits

better to change the formula and hope for the best!