http://www.youtube.com/watch?v=us27Jzt7jUQ Interview of Yoduk Survivor
http://www.youtube.com/watch?v=BN0xQByxwxk actual Yoduk concentration camp
http://www.youtube.com/watch?v=yrY1hYd4EQQ Video of Yoduk Story
http://en.wikipedia.org/wiki/Yodok_concentration_camp Info from Wikipedia
There is a one of the world most crucial and non humane concentration camp in North Korea known as YoDuk. There are some survivors from YoDuk concentration camp came to S.Korea and published book and even made Musical: YoDuk Story. Yo Duk story was even performed in Washington D.C. about 2 years ago.
People from North Korea who are sucess to escape from N.Korea and currently live in S.Korea always mentioned about this Yoduk concentration camp and they all described how brutal they were. Therefore some say N. Korea's Yoduk concentration camp is worse than German's Auschwitz concentration camp. Nothing was given to people in camp and just continuously work. Only served food were poorly made cover of grain soup that contains no nutrition to live. So most of people rely on other food like roots of trees, mice, and anything that are edible.
Since prisoners were not treated well that they only attempt to achive instinct desires like eat, sleep, and sex. It is pretty much like the first step of Maslow's pyramid. Military personnels only watch out for escaping prisoners but do not care much about what prisoners doing, even if there is fight between prisoners. Therefore there is many fights between people over food. Some survivors described as animal like pure wild nature was happening in Yoduk concentration camp.