Police filled Beijing's Tiananmen Square on Wednesday, the 25th anniversary of the deadly crackdown of student-led demonstrations there.
Tight Security for Tiananmen Anniversary
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Chinese paramilitary policemen practice their salutes at a barrack near Tiananmen Gate in Beijing, June 4, 2014.
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A police car is seen in front of a giant portrait of China's late Chairman Mao Zedong in Tiananmen Square in Beijing, June 4, 2014.