What Finland's leader can teach us about Putin

Finland’s President Sauli Niinistö has known Vladimir Putin for a decade and is among a handful of world leaders who continue to call the Russian president, trying to stop the war. Christiane speaks with him in London to get a sense of what might be Putin’s endgame. Next, Christiane discusses the growing humanitarian crisis in Ukraine with the UN's emergency relief coordinator Martin Griffiths. Also in today's episode: Correspondent Jim Sciutto reports on the thousands of foreigners who've answered President Zelensky’s call for a foreign legion to help repel the Russian invaders. And, Michel Martin interviews veteran war crimes investigator David Scheffer to evaluate the chances of convicting Putin and his henchmen.

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