This is simply not relevant and it reads a bit like a "tu quoque" argument from a North Korean apologist. It doesn't do them justice to call these "prison camps", they are gulags, they are concentration camps for political prisoners. Visiting them would be to revisit some of the worst horrors of the 20th century as seen in Nazi death camps or Stalinist gulags. The only reasons why these horrors haven't driven the west to action are that information about these camps are very difficult to get out and also there is very little we could do about the problem without causing millions of deaths (of South Koreans too) in the process.

I'm not familiar with American prison conditions but I suspect they aren't as bad as this: http://www.utsalumni.org/news/how-one-man-escaped-from-a-nor...

Came here to say the same. USA has hundreds of thousands of prisoners toiling away in Georgia and other states. They are simply better fed slaves, but slaves the same. Probably makes it worse that they are mostly black.