U.S. President Donald Trump and Moon Jae-in, South Korea's new progressive president, will meet later this month. Summits tend to be neatly scripted and choreographed, and by definition, successful. But this one may be different. The combination of Trump's "America first" impulses and Moon's leftish peacenik ideas run the risk of costly discord. To a considerable degree, the Trump and Moon administrations appear to be moving in opposite directions in regard to North Korea, trade and the U.S.-South Korea alliance.
Moon-Trump summit: How to avoid a train wreck
Threatened by North Korea, Seoul and Washington on divergent paths