(December 15, 2022, 8:59 AM EST) -- EAST ST. LOUIS, Ill. — A couple has sued the makers of the pesticide paraquat in Illinois federal court, contending that they are liable for the husband’s Parkinson’s disease because the companies “actively and fraudulently concealed” information about the “highly toxic” nature of paraquat, as well as the fact that exposure to it can cause severe neurological injuries and impairment....