John Authers, Columnist

China's Weaker Yuan Fix Is the Real Cold War Salvo

Setting the currency at its cheapest versus the dollar since 2008 is a clearer signal of intent than tear gas in Hong Kong.
 

A more potent signal than tear gas.

Photographer: China Photos/Getty Images

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It is never comforting to return from a long weekend to find headlines dominated by the word “war.” But that is what the deteriorating relationship between the U.S. and China has created. What exactly do all these references mean?