Chickens slaughtered in the United States, claim officials in Brussels, are not fit to grace European tables.No, say the American: our fowl are fine, we simply clean them in a different way. (1)_______________________. It is not just farmers who are complaining. An electric razor that meets the European Union's safety standards must be approved by American testers before it can be sold in the United States, and an American-made dialysis machine needs the EU's okay before is hits the market in Europe. As it happens, a razor that is safe in Europe is unlikely to electrocute Americans. (2)_______________________. Politicians agree, in principle, so America and the EU have been trying to reach a deal which would eliminate the need to double-test many products. They hope to finish in time for a trade summit between America and the EU on May 28TH. (3)_______________________.Why? One difficulty is to construct the agreements.The Americans would happily reach one accord on standards for medical devices and them hammer out different pacts covering, say, electronic goods and drug manufacturing. The EU -- following fine continental traditions -- wants agreement on general principles, which could be applied to many types of products and perhaps extended to other countries.