Why Did The USA Sign The Nuclear Deal With Iran ?
The USA has allowed an Iranian nuclear program to continue and will allow $100bn in embargoed oil revenues to return once compliance is established (approx. 1 year).
So what does the USA get ?
Normally I would follow the money, but US corporations and trade do not benefit under this deal. Most, if not all, trade and commercial relations with Iran by US interests and subsidiaries are still prohibited.