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    Preliminary Iran nuclear deal reached ... Now what?

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Preliminary Iran nuclear deal reached ... Now what?

A tentative deal has been reached with Iran on the country's nuclear program, but details need to be worked out. CNN's Jim Sciutto reports.

Preliminary Iran nuclear deal reached ... Now what?

A tentative deal has been reached with Iran on the country's nuclear program, but details need to be worked out. CNN's Jim Sciutto reports.