Emboldened Kim Jong Un oversees test of powerful new North Korean rocket engine days after China visit

Seoul, South Korea
 — 

Kim Jong Un on Monday watched a test of North Korea’s new high-thrust rocket engine, an event that sets the stage for Pyongyang to test its newest intercontinental ballistic missile (ICBM), the Hwasong-20, which state media said last week would be powered by the new rocket.

The test…