It could be argued that North Korea qualifies as a failed state. The regime is so unstable and insecure it requires a totalitarian grip on every citizen in order to survive. The government aspires to control every aspect of life to ensure the perpetuation of its power. It mainly achieves this by indoctrinating its citizens from birth and maintaining an atmosphere of fear and constant battle against invisible foreign enemies.
In reality, the allegedly perfect regime is ludicrously incompetent and inconsistent. Supposedly, there is housing for everyone, but no citizen can choose where to live. Supposedly, there is schooling for everyone, but no one can choose what they want to learn. Supposedly, there is universal healthcare, but there are no medicines to cure patients. On the one hand, individual initiative of any kind is stamped out, on the other hand, the government cannot provide basic necessities for its citizens, most importantly, food. On top of that, dissenters, nonconformists, critics and others who are considered traitors to the regime are regularly imprisoned, tortured or executed, often together with their entire family. (The list of known human rights violations is too long to go into any further.)
This begs the question, with such a tenuous grip on power, how does the North Korean regime manage to survive?