(March 4, 2019, 8:47 AM EST) -- CHARLESTON, S.C. — Some of the plaintiffs in the multidistrict litigation related to aqueous film forming foam (AFFF) products on Feb. 22 filed a brief in South Carolina federal court contending that the defendants who seek to separate themselves from the litigation were directly involved in developing the product and exercised “significant regulatory control” over its storage and use (In re: Aqueous Film Forming Foams Products Liability Litigation, MDL No. 2873, D. S.C.)....