The U.S. beef industry has lost up to $ 4 billion since the market closed , according to the U.S. Meat Export Federation . U.S. to open market to most U.S. beef says government official . Ban began in October 2007 amid concerns over a case of mad cow disease in the U.S. New agreement bans the import of high-risk materials , like tonsils and brains . thousands of South Korean have regularly staged protests against South Korea beef imports .
U.S. to open market to most U.S. beef says government official . Ban began in October 2007 amid concerns over a case of mad cow disease in the U.S. New agreement bans the import of high-risk materials , like tonsils and brains . thousands of South Korean have regularly staged protests against South Korea beef imports .