South Koreans attend a candle-lit rally demanding a full ban on the import of U.S. beef, in Seoul May 2, 2012. The police said hundreds of people attended, while civic groups said more than 1,000 people attended the rally, which was held also in commemoration of the fourth anniversary of a months-long protest against the import of U.S. beef after the outbreak of mad-cow disease in the United States. A South Korean delegation will conduct a week-long review this week of U.S. mad-cow safeguards in the wake of a new case of the brain-wasting disease in the U.S. REUTERS/Kim Hong-Ji (SOUTH KOREA - Tags: BUSINESS HEALTH CIVIL UNREST POLITICS FOOD ANNIVERSARY)