University students place flowers on the “Pillar of Shame” statue, a memorial for those injured and killed in the Tiananmen crackdown, at the University of Hong Kong, Monday, June 4, 2018. Tens of thousands of people are expected to attend an annual candlelight vigil for victims of the Chinese government's military crackdown nearly three decades ago on protesters in Beijing's Tiananmen Square. (Photo by Kin Cheung/AP Photo)
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