By Join Together Staff
Tobacco companies were aware of the dangers of a radioactive substance in cigarettes as early as 1959, but hid this knowledge from the public, according to a new study.
The substance, called polonium-210, causes cancerous growths in the lungs of smokers, according to ABC News. Scientists from the University of California, Los Angeles, studied 27 documents that had never been analyzed, and found tobacco companies calculated how much radiation a regular...
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