North Korean propaganda is revealing new insight into the country's nuclear arsenal. Episode one of Moving Upstream explores how one team came to more aggressive conclusions about North Korea than the Trump administration. Watch the full episode here: http://on.wsj.com/2y23Rp4 | The Wall Street Journal

99K views · 443 reactions | Jackie Castro has been waiting more than eight months for a new lung. If Dr. Harald Ott’s research works, long wait times could be a thing of the past. More from this series: wsj.com/upstream | The Wall Street Journal | Facebook