Quote from nitro:
You should go back and study the "does smoking cause cancer" debate back in the fifties and sixties. You will find nearly identical crazies saying there was no conclusive evidence causally tying smoking and cancer.
And 85% of these 'crazies' were university professors who were funded by the tobacco industry to produce findings that there was no conclusive evidence casually tying smoking and cancer.
It was outsiders with no ties to the tobacco industry who demonstrated that there was clear evidence tying smoking and cancer... and pushed the point in front of Congress. The tobacco industry tried to discredit these people saying they were merely engineers and doctors ... not scientists.