Activists shout slogans while a man gets a tattoo on his back in front of the Legislative Yuan to protest against the government's policy of allowing the import of U.S. bone-in beef in Taipei January 5, 2010. Taiwan's parliament amended a food safety law on Tuesday to ban certain U.S. beef imports over widespread fears of mad cow disease, testing trade ties with Washington, just two months after opening the market. The Chinese characters on the banner read, "Referendum." The tattoo on the man's back calls on citizens to come out in opposition to the policy. REUTERS/Pichi Chuang (TAIWAN - Tags: CIVIL UNREST POLITICS)