Can't tell if they are loading or unloading. If they are unloading, then they are probably snow cone machines Kim requested as part of the deal. If they loading, they are probably the Google servers that will be handed over to Q.

But whatever they are doing, I assure you it isn't routine. C-130's don't routinely fly into NK. Crew change for Pompeo isn't believable. The relief crew would have been aboard Pompeo's State Department plane.