Koryo Airline is listed in the air careers in the European Union. So, I won't board Koryo Air anymore, even if I go to North Korea.
Usually, air careers take it into consideration that foreign passengers board their airplanes, and try to make them feel comfortable during flight.
But, what Koryo Air does is contrary to this attitude.
Otherwise, Koryo Air intends to attract foreign passengers by doing so in a way.
