April 4 (Bloomberg) -- Lee Jung Hoon, a professor of international relations at Yonsei
University in Seoul, talks about North Korea's threats to South Korea and China's possible role in the negotiations.
North Korea prevented South Korean workers from entering a jointly run industrial park today,
adding to tensions after saying it will restart a mothballed nuclear plant and threatening to attack its southern neighbor. Lee speaks with Rishaad Salamat on Bloomberg Television's "On the Move." (Source: Bloomberg)