Una lee traveled to china for a two week documentary about north korean defectors. On their last day of filming they found themselves at the tuman river, which flows between north korea and china. They knew it was a risky move to try and film the safe houses up close, but they also knew these houses represented a critical part of the escape route. So after we get ta fot, we quickly left. And we were in the middle of the river and walking back, and continued to falming. And a our producer, he shouted, soldiers. Bad depension on to day's episode, how finding humanity in your enemy can help you survive. Im