HONG KONG -- A monument at a Hong Kong university that commemorated the 1989 Tiananmen massacre was boarded up by workers late Wednesday, prompting fears over the future of the monument as the city’s authorities crack down on dissent.The 8-meter (26-foot) tall Pillar of Shame, which depicts 50 torn and twisted bodies piled on top of each other, was created by Danish sculptor Jens Galschiøt to symbolize those that lost their lives during the bloody military crackdown on pro-democracy protesters