Former National Security Adviser Susan Rice on North Korea, Russia and the Trump White House allegations against her.

Airdate April 30, 2017: On GPS, former National Security Adviser Susan Rice on Trump's performance on the world stage. Then, Canada's Foreign Minister Chrystia Freeland on a weird week in North American relations including talk of a trade war. And, what to do about Afghanistan. Will America ever exit the Graveyard of Empires?

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