Presidents Obama and Rouhani discussed three Americans , administration official says . Obama `` noted our interest in seeing those Americans reunited with their families , '' official says . Score: 6 Bob Levinson 's whereabouts have not been known since he vanished in Iran in March 2007 .
Presidents Obama and Rouhani discussed three Americans , administration official says . Obama `` noted our interest in seeing those Americans reunited with their families , '' official says . Saeed Abedini and Amir Hekmati are serving prison terms . Bob Levinson 's whereabouts have not been known since he vanished in Iran in March 2007 .