Another important consideration for Korean Unification. One of the reasons that it is critically important that there be a stay put policy in north Korea and keep people "fixed" in their current homes (critical to doing this will be restarting some form of the north's public distribution system to get critical supplies to the people).
By the way the work that both Linton brothers do is really quite amazing and they have tremendous insights into what life is like outside of Pyongyang.
But this quote sums up the entire problem with the north Korea:
“When you care about a system, or an idea, more than the people who actually live in that system, that’s when things get really brutal,” Linton explains.
Of course that "idea" is really the survival of the Kim Family Regime and perpetuation of the system of total control over the population.