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International relations

Facial profiling helped Donald Trump trip up Xi Jinping

Now specialists and new technologies have their gaze on Kim Jong Un

This picture issued by North Korea's Korean Central News Agency on April 20 could give facial profilers clues to Kim Jong Un's personality, mental state and health.   © Reuters

TOKYO -- In diplomacy, leaders often speak more eloquently with their faces than with the words they exchange.

At least they do to trained specialists in Japan, Europe and the U.S., who receive little attention but provide information that is increasingly underpinning diplomatic strategies.

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