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A Chinese security guard, right, attempts to stop Australian Liam Phelan, left and American Han Shan of New York from holding up a banner that reads "No Olympics for China until Tibet is Free" and Olympic rings shaped like barbed wires from a Chinese style bridge at the Ethnic Minorities Park in Beijing, China, Monday, Aug. 30, 2004. The two were representing the International Tibet Support Network, a body of Tibet related non-government organisations with a political mandate aimed at ending human rights violations in Tibet. Beijing's Olympics in 2008 has become a target for many interest groups seeking for their voices to be heard. The two were later detained by Chinese police. (AP Photo/Ng Han Guan)