China will retaliate in 'as commensurate a way' as it can: Prof

1:11 AM ET Mon, 13 May 2019

Beijing could target U.S. farm exports to China in retaliation to elevated American tariffs, says Susan Shirk of the University of California in San Diego's 21st Century China Center. She also says that "anything" could be considered "fair game" for China to use in retaliation.