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.
http://news.infoshop.org/article.php?story=20101209231616269
http://www.wsbradio.com/news/news/local/growing-problem-cell...
Seriously, yes, our prison system is really, really screwed up, but we got here largely out of public myopia and apathy, and to indicate we arrived at this place for reasons bearing any similarity to North Korea's is ignorant, at best.