Former MI6 Chief On Security Threats, From North Korea To Domestic Terrorism

The Trump administration faces serious foreign policy challenges, and has yet to form a comprehensive, predictable strategy to handle them. This month, American forces bombed an airfield in Syria and an Islamic State stronghold in Afghanistan.

Here & Now's Jeremy Hobson talks with Sir John Sawers, former head of the British Secret Intelligence Service MI6 who is currently chairman of Macro Advisory Partners, about navigating security threats around the world.