U.S. to Retaliate: U.S. Trade Representative Carla A. Hills labeled Canada’s export curbs on some unprocessed fish as unfair and set hearings to determine which curbs would be levied against Canadian fish shipments. She said the United States had pressed Canada to end the restrictions since mid-1986 and that it had been more than a year since the curbs were found illegal under the world trading body General Agreement on Tariffs and Trade. Canadian law prohibits the export of unprocessed herring and pink and sockeye salmon to American processors. Hills said a GATT panel rejected the Canadian claim that the prohibition was a legitimate conservation measure.