Right now he is (to the DPRK) the gift that keeps on giving. They’d be suicidal to pose any threat to him or do something to harm that. We are talking the goose laying the golden eggs here. POTUS would be in no such way threatened or in danger.
(Now if SOS or NSC Chair (who really grasp things and are not easily jacked around by the clever, flattering, lying, disingenuous Norks) were to somehow poke around there alone along the MDL..well....that would be quite a different story (in artillery range) . Pyongyang hates their guts to the core and has made the clearly obvious.
Schedule for today:
2:30 PM Trump arrives at the Korean Demilitarized Zone Overlook (with Moon)
4:20 PM Trump arrives at Osan Air Base WLT Hangar