Considering they have performed assassinations outside of their soil, I would be slightly concerned.
Killing a US citizen on US soil would not go down well.
> North Korean state media threatened "merciless" retaliation for his depiction in the film. Seth Rogen responded, "People don't usually wanna kill me for one of my movies until after they've paid 12 bucks for it."
https://en.m.wikipedia.org/wiki/The_Interview
Where is the merciless retaliation? Keep in mind this film has a graphic scene where Kim Jong Un dies…