(April 20, 2018, 9:32 AM EDT) -- SAN FRANCISCO — The indivisible nature of asbestos injuries makes separating Navy and non-Navy exposures nearly impossible, and the broad approach to federal officer removal warrants having a federal court address the complex situation, two companies tell the Ninth Circuit U.S. Court of Appeals in a brief filed April 17 (Maxine Pelker, et al. v. CBS Corp., et al., No. 18-35114, 9th Cir.)....