"The aftershocks reach Asia, as well. Although the Chinese reaction to the missile strike has been measured, President Xi Jinping could not have been thrilled to have this drama play out as he faced the cameras at Mr. Trump’s table. ... . At a minimum, Kim Jong-un has something new to think about."
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Not sure about that.
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Donald Trump may have just indirectly strengthened China's hand in its dealings with North Korea.
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In the good-cop, bad-cop mode, China can now give wise advice, without having to remind the government of North Korea of the possible dire consequences of failure to heed that wise advice in a timely manner:
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Better watch out:  Mad-dog Vachon is in the White House!