China envoy calls on U.S. to define 'national security boundaries'
WASHINGTON -- China's ambassador to the U.S. has called out Washington for failing to engage in promised talks with Beijing about defining the "boundaries" of national security, despite what he described as an agreement by the two countries' leaders to do so.
Xie Feng's comments, made during his two-day visit to Harvard University on Friday and Saturday, were published on the Chinese embassy's website over the weekend.