This was happening across Europe. He encouraged me to research it. Europe's also producing a new generation of scientists absorbing political winds. If the theory does not fit the facts, get rid of the facts. Worse, with more US cigarettes here, what they're studying is changing in front of them.
Nobody sees that.
Personally, as a wild guess, I would consider chlorine gas from the growing use of showers as a cancer-causative factor. With US Prohibition history, the Tobacco industry will pale compared to the Anti-Tobacco industry. His predictions materialized. Today, the politicization of a personal choice is fraught with political symbolism. Cigarettes are bad for women, cause every ill, must be banned from homes, and are now grounds to remove custody of children.