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British Foreign Secretary Philip Hammond, U.S. Secretary of State John Kerry, EU's foreign policy chief Federica Mogherini and Iranian Foreign Minister Mohammad Javad Zarif arrive prior to the announcement of an agreement on Iran nuclear talks on April 2, 2015 at the The Swiss Federal Institutes of Technology in Lausanne
British Foreign Secretary Philip Hammond, U.S. Secretary of State John Kerry, EU's foreign policy chief Federica Mogherini and Iranian Foreign Minister Mohammad Javad Zarif arrive prior to the announcement of an agreement on Iran nuclear talks on April 2, 2015 at the The Swiss Federal Institutes of Technology in Lausanne

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Expert assesses the good and bad of the Iran deal

Inspectors will have access to all nuclear facilities under the tentative Iran deal. Former nuclear adviser to President Obama Gary Samore weighs in.

Expert assesses the good and bad of the Iran deal

Inspectors will have access to all nuclear facilities under the tentative Iran deal. Former nuclear adviser to President Obama Gary Samore weighs in.