Top U.S. hostage negotiator on lessons learned from prisoner swap with Russia

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NPR’s Ari Shapiro speaks with Special Presidential Envoy for Hostage Affairs Roger Carstens. He helped negotiate Thursday’s prisoner swap — one of the largest since the end of the Cold War.

NPR’s Ari Shapiro speaks with Special Presidential Envoy for Hostage Affairs Roger Carstens. He helped negotiate Thursday’s prisoner swap — one of the largest since the end of the Cold War.