Could The U.S. Shoot Down North Korea's Missiles?

Whether or not the U.S. could shoot down North Korea's missiles is a key question as Kim Jong Un and President Trump ramp up their threats of war. North Korea has launched more than a dozen missiles in tests this year, two over Japan.

Here & Now's Jeremy Hobson speaks with missile defense analyst Ian Williams (@ianwilliams1383), associate director of the international security program at the Center for Strategic and International Studies.