(August 10, 2015, 9:30 AM EDT) -- NEW ORLEANS — The Fifth Circuit U.S. Court of Appeals on Aug. 6 held that a second sworn proof of loss was necessary for Louisiana insureds to perfect their claim for Hurricane Isaac damage, affirming a lower federal court’s ruling in favor of a federal flood insurer (Ron Ferraro, et al. v. Liberty Mutual Fire Insurance Co., No. 14-30944. 5th Cir.; 2015 U.S. App. LEXIS 13762)....