North Korea fires 23 missiles, South Korea responds

South Korea’s military said North Korea launched at least 23 missiles — 17 in the morning and six in the afternoon — off its eastern and western coasts on Wednesday. South Korea responded, firing three air to surface missiles from a warplane into waters north of the border. Host Marco Werman speaks with Jeffrey Lewis, director of the East Asia Nonproliferation Project at Middlebury Institute of International Studies, about the missile exchange and heightened tensions on the Korean Peninsula.