The European Union’s $4 billion retaliation against the U.S. for subsidies to Boeing will be formally authorized by the World Trade Organization at a Dispute Settlement Body meeting next week, according to the agenda. The recent WTO ruling faulting the U.S. Section 301 tariffs on China also is slated to be taken up at the meeting, although the U.S., which fiercely criticized last month’s report, can still appeal the result. An appeal would send the dispute to a nonfunctioning Appellate...