In a rare press conference...over safety and fraud, officials frankly acknowledged the problems they encounter and outlined steps to tackle them...The government is implementing a five-year plan to tighten the supervision of food and drug products, upgrade standards and vastly reduce the number of incidents caused by defective food or faulty medicines by 2010..."Our food market access system has been so implemented that supermarkets like Wal-Mart, Carrefour and Hualian [or Beijing Hualian Group] do not stock food items without a Quality Safe (QS) mark," the chief of the agency's food production and supervision department said.