If this happens, it is actually a pretty big deal, and not just for the substantive act of the facility being destroyed. It would be a pretty good sign that Trump is playing this whole thing rather well in terms of negotiations. These kind of "trust-builders" prior to a formal agreement can be really useful in terms of bringing two sides together for a final deal. It also amounts to a Trump essentially "testing" Kim publicly. Trump makes the statement -- on the record -- that Kim promised to do this. If Kim
doesn't do it, Trump can call him out for bad faith, say that he did a good faith step of postponing military exercises as a good-faith gesture, but Kim betrayed and embarassed him. It is useful either way.
But if Kim goes through with it, it is a significant action that will help both sides make more concessions along the way. It's
really sound dealmaking strategy. Trump may be a buffoon in a lot of ways, but the whole way he has handled this is impressive to me. He is basically ignoring standard political conventions for how international deals are made, and is simply treating this in the more results-oriented style used by businesses.
@Jazzhead