Andrew Martin in the New York Times reports that "The Food and Drug Administration today issued an alert challenging imports of five major types of farm-raised seafood from China, including shrimp and catfish, because testing found recurrent contamination from carcinogens and antibiotics. The alert means that the fish will be allowed for sale in the United States only if testing proves that it is free of certain antibiotics and carcinogens found previously."

Here's the kicker: "In May, for instance the F.D.A. turned away 165 shipments from China, 49 of which were seafood. Monkfish was rejected for being filthy. Frozen catfish nuggets were turned away because they contained veterinary drugs. Tilapia fillets were contaminated with salmonella."