From Liberty in North Korea’s (Link) website:
Nat Kretchun is the nerdiest guy on media and technology trends in North Korea. He has worked extensively with North Korean refugees and defectors to study the effects of foreign media on the North Korean people. Nat has a master’s degree in China/Korea studies and international economics from Johns Hopkins. He’s also studied at a Yonsei University in Seoul and Fudan University in Shanghai. He speaks Korean and Mandarin Chinese.
In this video, Nat discusses the changes in North Korea’s information landscape over the last 10-15 years, and how the North Korean people are overcoming the regime’s restrictions.