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US Secretary of State John Kerry gestures during his statements to the press after meeting with Greek foreign minister at the ministry of foreign affairs in Athens on December 4, 2015. / AFP / LOUISA GOULIAMAKI  (Photo credit should read LOUISA GOULIAMAKI/AFP/Getty Images)
US Secretary of State John Kerry gestures during his statements to the press after meeting with Greek foreign minister at the ministry of foreign affairs in Athens on December 4, 2015. / AFP / LOUISA GOULIAMAKI  (Photo credit should read LOUISA GOULIAMAKI/AFP/Getty Images)

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John Kerry talks dealing with Iran, Bob Levinson

Secretary of State John Kerry talks to CNN's Wolf Blitzer about negotiating with Iran and trying to track down the location of Bob Levinson.

John Kerry talks dealing with Iran, Bob Levinson

Secretary of State John Kerry talks to CNN's Wolf Blitzer about negotiating with Iran and trying to track down the location of Bob Levinson.