Yeah, the concentration camps they have over there are fucking insane. Its like Soviet era Gulags. They literally will have you work yourself to death, or work until you are physically unable to, and then kill you themselves. Women, children, whatever.
The good news for them is they have held for 60 years. They havent held "strong" but they held. Its a shame too, given that 95% of North Koreans would behave exactly like their brethren from the south if given the chance. They would be a peaceful, technology addicted culture that wants nothing else than happiness. But instead the North's power structure takes advantage of their own population and oppresses any naysayers.