Don't they have some refugees to resettle?
It only gets hideously deadly (in contrast with deadly) if the DPRK launches a nuke. Then, there is potential for all Hell to break loose, and that depends on the wind (the fallout plume could hit Japan, China, S Korea, Russia, just in close). That presumes their nuke is interdicted and the US responds in kind.
Otherwise, the idea would be to shut down their program, and if the
RNEP was, in fact, scrubbed, then the task might fall to
GBU-57s which can fit two to the B-2,