I see that price for Bitcoin is in North Korea 50% higher than in Europe. I like travelling and I was thinking to travel to North Korea and sell Bitcoin for cash. Is that possible? I was thinking to arrange a deal with couple of persons. They can exchange North Korean won for $ or € in their bank, I send them bitcoin and they give me cash (for cheaper price as they are paying in their country). Or I can go to money exchange office and exchange North Korean won for Euros. Would be that possible, are there any potential problems about that?