One was in Rajin-Sonbong, a failed investment zone close to the Chinese border; another lurked in the basement of an isolated hotel for foreigners in Pyongyang.

• 其中一个是在罗津-先锋，这是一个靠近中国边境失败的投资区；另一个隐藏在平壤的一家专门对外国人开放的宾馆的地下室中。