Former Joint Chiefs Head: Tensions With N. Korea Have Potential to 'Explode' Listen Download Embed Share Share this on Facebook (Opens in a new window) Share this on Twitter (Opens in a new window) Share this via Email A man watches a television screen showing U.S. President Donald Trump, left, and North Korean leader Kim Jong Un during a news program at the Seoul Railway Station in Seoul, South Korea. May 2, 2017 ( Ahn Young-joon / Associated Press ) Produced by Ellen Frankman Hosted by Todd Zwillich Produced by PRI and WNYC