I think people are making a lot of assumptions about the Norks range capabilities.
Scuds can’t even go 500 miles...and I’d bet their speed and trajectory makes it obvious they are Scuds.
Nork nukes and their range? The best info is they have a range of 2,500 miles...way short of even hitting Alaska.
I don’t know why we are getting worked up about the Norks nuking the US mainland. Much more likely, they would aim for a US military installation in the region - in Japan or South Korea. It would be a twofer, and it would be terrible. But it wouldn’t even give our missile defense system an opportunity to work or fail - they just don’t have the range to hit us here.
They only have to make it to Seoul.