I’ve been saying all along that an enemy could launch one nuke at CONUS to “put us in our place,” presuming it would be extremely difficult to identify the nation state responsible. Naturally, it would involve the use of a proxy. Sort of a “there, that should keep them busy for a while” gambit. This could be a step in that direction. And if we did determine it was the Norks, well, what would China care if we glassed NK over in retaliation?
I liked the Cold War better.
Ignore the monkeys, shoot the organ grinders.