How U.S. airstrikes could affect ongoing tensions with Iran

Words and actions between the U.S. and Iran are escalating. On Sunday, U.S. military strikes on an Iraqi militia group backed by Iran killed 25 fighters in what the U.S. said was retaliation for rocket fire that killed an American defense contractor. Brian Hook, the State Department’s special representative for Iran, and Vali Nasr of Johns Hopkins University join Nick Schifrin to discuss.

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