US Imposes New $200bn Tariffs on China. Mark Wu, September 17, 2018, Audio, “The US is imposing new tariffs on $200bn worth of Chinese goods as it escalates its trade war with Beijing. We hear from Mark Wu, professor of international trade law at Harvard Law School. So what is the view on this in China? We speak to our Asia Business Correspondent Karishma Vaswani from the World Economic Forum in Tianjin, China.Link