How should U.S. respond to North Korea’s missiles?

North Korea launched an intercontinental ballistic missile on Friday. More

North Korea launched an intercontinental ballistic missile on Friday that experts said could strike at least half of the continental U.S. Chief foreign affairs correspondent Margaret Warner reports on the response by the U.S. and allies and William Brangham examines options for dealing with the North with Robert Gallucci of Georgetown University and Michael Pillsbury of the Hudson Institute.

AIR DATE 7/31/17