A former chief negotiator on nuclear issues, Hassan Rohani is described as a moderate. Discussions with Iran broke off earlier this year, but Rohani's influence only goes so far. Norah O'Donnell ... more 
A former chief negotiator on nuclear issues, Hassan Rohani is described as a moderate. Discussions with Iran broke off earlier this year, but Rohani's influence only goes so far. Norah O'Donnell reports. less 
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Mon, Jun 17, 2013 9:51 AM EDT