NEW ORLEANS - Contending that their claims of flood damage from the Army Corps of Engineers' alleged negligent dredging of the Mississippi River Gulf Outlet (MRGO) are not foreclosed, plaintiffs on Jan. 14 appealed a federal district court's ruling in favor of the United States in a Hurricane Katrina dispute (In re: Katrina Canal Breaches Consolidated Litigation, No. 05-4182, E.D. La.; 2013 U.S. Dist. LEXIS 180464).