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Need To Know

WATCH: The Crackdown on Silicosis

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SASHA-ANN SIMONS/WXXI NEWS
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Silicosis cost Chris Johnson his career, and he is now fighting for his life.

Every year, over two million American workers in the construction industry are exposed to silica dust, which can lead to a range of illnesses including silicosis. In this segment of Need to Know, find out how OSHA  plans to reduce silica dust exposure for construction workers, and if the efforts are too late.