In Hong Kong, the commemoration of the 29th anniversary of the Tiananmen Square crackdown has rightly called attention to the late Nobel laureate Liu Xiaobo and his widow Liu Xia, who remains under house arrest (“More than 100,000 people attend June 4 vigil in Hong Kong”).

A Chinese history professor I once knew recalled the fledgling Chinese Communist Party in the 1920s, when he went to China as a young journalist. The late Earl Swisher did not live to see Tiananmen Square in 1989, but he would remember the horrors of the Great Leap Forward and the millions who perished during those fateful years under Mao Zedong. He is not alone.