An employee cooks local beef at a restaurant in Seoul April 25, 2012. Two major South Korean retailers halted sales of U.S. beef after an outbreak of mad cow disease as the country's agriculture ministry looked set to move towards banning quarantine inspections, a move that would effectively end imports. Lotte Mart, a unit of Lotte Shopping Co., said it had suspended sales due to what it said was "customer concerns", as did Home Plus, a unit of Britain's Tesco PLC. REUTERS/Kim Hong-Ji (SOUTH KOREA - Tags: BUSINESS HEALTH FOOD)