What will the Iranians do with all of that money when sanctions are lifted. Some opponents of the nuclear agreement have argued that they will buy conventional weapons and carry on with their terrorism, etc.

Questions: How much money are we talking about? Whose money is it? This helpful rundown from Al-Monitor may not be definitive, but it lays out some of the amounts, the owners, and the entanglements that come with international finance. The phrase, "usable funds" figures in the analysis, "Will Iran Get Its Billions Back."