Zane had spent several hours explaining the situation of the outside world to the officers in charge of his interrogation. He was of course curious how North Korea had survived so long. After all, the Undead Plague was not something easily overcome with conventional weaponry.
If the United States Armed Forces had failed to stem the tide, then how exactly did the North Korean military succeed? Though the North Korean officers weren't willing to divulge any information to Zane. They didn't necessarily treat him as a hostile agent.
After all, they had managed to survive in their isolated realm, whereas all other human civilizations had failed. Granted, Zane had no doubt that millions must have starved as a result of North Korea losing economic and agricultural support from their few allies in the world.