REVEALED: 10,000 killed in China's 1989 Tiananmen crackdown
A man stands in front of a convoy of tanks in the Avenue of Eternal Peace in Tiananmen Square in Beijing on June 5, 1989.

At least 10,000 people were killed in the Chinese army's crackdown on pro-democracy protesters in Tiananmen Square in June 1989, according to a newly released British secret diplomatic cable that gives gruesome details of the bloodshed in Beijing.