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.
US-China tensions
China envoy calls on U.S. to define 'national security boundaries'
Xie Feng says talks on issues of concern should be reciprocal during Harvard visit
Xie Feng, China's ambassador to the U.S., right, speaks with Harvard Kennedy School Dean Graham Allison at a fireside chat at Harvard University in Cambridge, Massachusetts on April 19. (Embassy photo)
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