Now that he has evidently mastered the North Korean foreign policy and nuclear brief and met with the U.S. President, Kim Jong Un is on the move again.

Two unusual aspects bear noting at the outset. The first was the letter from Kim to Xi on the occasion of the Chinese leader’s birthday over the weekend; the letter praised Xi’s “great revival of the Chinese nation” and posed close strategic coordination between China and North Korea as an inevitable choice.

The second unusual aspect was the fact that Kim’s arrival in Beijing was actually reported on in more or