Much is being made in the MSM of the similar-sounding docs that NK has signed and ignored in the past.
I think all here recognize the material difference in the current situation. My thinking is that part of keeping the official docs light in commitment right now is because Kim and Trump are dealing with the tricky business of China and China’s grip on NK. Better that NK show their commitment by actions rather than words right now.
Also, of course, after the Obama/Clinton betrayals of Libya, Ukraine, etc.—we do have some showing to do to Kim on the other side as well.
Yes, actions speak louder than words.