The USTR’s latest complaint to the WTO about China relates to agriculture. The case won’t be completed until President-elect Trump’s administration is in place. It comes just after China’s complaint to the WTO about the treatment it gets from the U.S. and EU under market economy status rules. Panjiva data shows China’s imports of corn from the U.S. fell to $70 million in the past 12 months from $1.2 billion in 2013. That year also included significant corn exports by China to North Korea. Chinese imports of U.S. wheat fell to $200 million from $1.3 billion in 2013. China still imports $1...