The first round of talks between the U.S. and South Korea to look at potential changes to the KORUS trade deal will start on August 22. The U.S. may want to pursue modest changes on a transactional basis to cut the trade deficit and avoid triggering a round of consultations with Congress. Yet, the administration of President Moon Jae In has made it clear a fuller review is required, and that talks will take “a long time” to complete. Even if South Korea is willing to pursue quick fixes – and it may do so to avoid the U.S. withdrawing from KORUS – they may be hard to find. Restrictions to...