1989 TIANANMEN SQUARE MASSACRE: 20th Anniversary Marred By Chinese Government

07/05/2009 05:12 am ET | Updated May 25, 2011

Chinese police have ringed Tiananmen Square, to prevent people marking the 20th anniversary of the massacre.

The clampdown came as China angrily rejected calls for a review of the 1989 crackdown in which hundreds, possibly thousands, of people were killed.

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