"A Chinese paramilitary policeman stands guard next to a display showing four generations of Chinese leaders, from right, current President Hu Jintao, former President Jiang Zemin, paramount leaders Deng Xiaoping and Mao Zedong during an exhibition entitled ""Scientific Development and Splendid Achievements"" held ahead of the 18th National Congress of the Communist Party of China in Beijing, Nov. 5, 2012. (Andy Wong/AP)"
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