U.S.-China relations are under "unprecedented" strain, says Chinese ambassador to the U.S. NBC NewsChina vows retaliation if US continues 'hostile actions' against journalists Fox NewsChina 'to retaliate' if U.S. acts against journalists ReutersAmerican Journalists in Hong Kong Could Be Beijing's Next Target BloombergChina vows retaliation if any U.S. action against journalists ReutersView Full Coverage on Google News