Brussels, 27/08/2001 (Agence Europe) - The United States is now asking importers of animal products for certificates guaranteeing that the country of origin is free from the mad cow disease and the human variant of the disease. Resolved to step-up border protections against BSE, the American Agriculture Department is considering extending the new rules to all beef, goat and sheep. The new American provisions provide for importers stipulating the origin of the animal, the herd to which it...