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Unbelievable.  You actually appear to be ignorant of the most demonstrable medical conspiracy of the 20th century, namely the tobacco conspiracy, which sought to promote industry-friendly medical ""science"" for 100 years while covering up and playing down the health consequences.  The link between tobacco and cancer was first hypothesized as a carcinogen in 1898, with the first animal experiments finally producing demonstrable evidence for the link in the 1930s.  The scientific consensus for lung cancer from tobacco first formed in the 1950s. Because of the constant ""doubt is our product"" propaganda from the tobacco industry, the public did not fully become cognizant of the risk until thirty years after the science was solid. And throughout this last century, tobacco industry funded studies appeared in peer-reviewed journals without proper disclosure, twisting and distorting the science at every possible level.  Surely you must know this.   "