. >> reporter: one month after warmbier received a 15-year prison sentence, photographer tyson wheatley to pyongyang with a tour group. he says he knew the risks but wanted to visit one of the most mysterious places on earth. >> as an american, i feel extremely fortunate that we are able to travel around the world. but i don't think it's the government's role to tell us where we can and cannot go. >> reporter: tyson wheatley says that his tour group was explicitly told not to take pictures of construction and not to fold up or throw away a newspaper that had kim jong-un's picture on it. when we were in north korea back in april reporting from there, we ran into a lot of tourists. we stayed at the hotel that otto warmbier had stayed at where he allegedly tore down that poster and every morning we run into tourists in the elevator mostly from germany, sweden, australia, and i would ask them why are you here, and almost to a perp they just said they were curious and wanted to come to a place few people have ever visited. jeff? >> ben tracy, thank you very much. back to that story about the