It's been nearly two weeks since negotiators in Switzerland were able to agree on an outline for a nuclear agreement with Iran. Since then, the US and Iran have published their own versions of the terms - in English and in Farsi. But discrepancies between the two versions are causing some to question whether the terms got lost in translation.

Rob Litwak, Vice President of Scholars at the Woodrow Wilson Center and former director of nonproliferation in the National Security Council of President Clinton, talks about the differences between the English and Farsi texts.