The U.S. government is considering “secondary sanctions” on Chinese firms dealing with North Korea. That would be the result of growing frustration in the Trump administration with Chinese sanctions moves against North Korea. Those considerations could overshadow forthcoming Comprehensive Economic Dialogue talks that may set the tone for the coming year of trade relations between the U.S. and China. Panjiva analysis shows macroeconomic data is going the “wrong” way too, with the Chinese trade surplus with North Korea climbing to $1 billion, and with the U.S. to $25.4 billion. The latt...