Mealey's (November 19, 2015, 12:36 PM EST) -- PHILADELPHIA — A federal judge should clarify that specific causation remains a requirement in an asbestos case and that a recent expert testimony ruling did not address it, Ford Motor Co. argues in a Nov. 17 motion (Leroy J. Mortimer and Cheryl Mortimer v. A.O. Smith Corp., et al., No. MDL 875, 13-4169, E.D. Pa.)....