Consumers worldwide benefit from more than 10 years of aggressive, coordinated government and industry efforts that have kept the U.S. cattle herd free of bovine spongiform encephalopathy (BSE), better known as 'mad cow' disease, the National Cattlemen's Beef Association (NCBA) said today. ``While the European Union suffers through crippling consumer concerns and behind-the-curve government efforts to deal with the current European mad cow disease scare, no cases of BSE have been found in the United States, said NCBA CEO Charles P. Schroeder. ''And we believe our continued prevention efforts resulted in the October scientific report by the U.S.-based Council for Agricultural Science and Technology (CAST) that found a very low risk for U.S. occurrence of BSE.