Trump-Kim meeting may be a trap, experts warn
Experts are warning Donald Trump's imminent meeting with North Korean leader Kim Jong Un could be an elaborate trap. Optimists about the summit in Singapore say the meeting is a feat of diplomacy on the part of the US president. But more skeptical critics who have been long-time observers of US-North Korea relations are not so sure. One of those skeptics is Professor Sung Yoon Lee from Tufts University in Boston. He talks to Philippa Tolley.