FILE - In this Aug. 1, 2007, file photo pallets of catfish fillets from China, America's biggest foreign source of seafood, are tagged with Food and Drug Administration red tags, marking it for inspection inside a cold storage warehouse at the Pacific American Fish Company, Inc. , in Vernon, Calif. A new law from Congress now singles out catfish, including all imports, as the only seafood to be regulated by the Agriculture Department, which has thus far inspected only beef, pork and poultry products. It leaves it up to the Agriculture secretary to define what species would fall under the definition of "catfish". AP Photo logo AP Photo 32 months ago

FILE - In this Aug. 1, 2007, file photo pallets of catfish fillets from China, America's biggest foreign source of seafood, are tagged with Food and Drug Administration red tags, marking it for inspection inside a cold storage warehouse at the Pacific American Fish Company, Inc. , in Vernon, Calif. A new law from Congress now singles out catfish, including all imports, as the only seafood to be regulated by the Agriculture Department, which has thus far inspected only beef, pork and poultry products. It leaves it up to the Agriculture secretary to define what species would fall under the definition of "catfish".