'Concerned but not panicked' over President Trump's nuclear 'button talk'

A North Korean soldier looks at the southern side through a pair of binoculars at the border village of Panmunjom, north of Seoul, Wednesday, Feb. 26, 2003.
AP Photo/Ahn Young-joon
Bill Radke talks to Elizabeth Saunders, an associate professor of political science at George Washington University, about the exchanges between President Trump and Kim Jong Un, diplomacy and the threat of nuclear war.