Thursday marks 20 years since the communist Chinese government brutally crushed student democracy protests in Beijing’s Tiananmen Square. So is there a legacy of those protests or is it just the ongoing brutal repression of those who disagree with Chinese leaders? How has China changed on the world stage in the past two decades? How has the U.S. relationship with it changed? And is it for the better? We ask Walter Lohman, director of the Asian Studies Center at the Heritage Foundation.