We should take advantage of the opportunity to test our anti-missile capabilities by knocking this NK missile out of commission as soon as possible after launch. Doing so would deny them the ballistic data they need to improve their systems, while providing us with needed data to install a working anti-ballistic missile defense in the Pacific.
As I understand it, we have at least 4 different systems that could knock it out in various stages of flight. One of them probably wouldn’t be practical in this instance, but the other 3 could be tested. Of course, if the first one worked, the other 2 wouldn’t have much of a test. :-)