The article first highlights that five former mine executive that worked for W.R. Grace and Co. and will be facing federal criminal charges. The case stems from a now closed mine and mill that extracted and processed asbestos-tainted mineral. Workers and their family members operating in a remote town in Montana experienced over 200 deaths and many more illnesses associated with exposure to the mines dust clouds of vermiculite (Which had been infused with naturally occurring asbestos). Much of the prosecution rests on testimony from a toxicologist that in 1977 drew comparisons between vermiculite mine in South Carolina and the Montana mine and immediately noticed the differences in the mineral content and worker health. This case is unusual insofar as typically prosecutors typically do not press federal charges in cases involving asbestos and typically leave these issues for civil courts. The cornerstone of the prosecution stems from the allegation that the company and managers were well aware for several decades that their workers were indeed being exposed to dangerous levels of asbestos and even went so far as to misrepresent the actual hazard level to their employees. Ultimately this would boil down to charges of fraud, conspiracy as well as several violations of the United States Clean Air Act.