Ah Here is the Carrot in the Iranian Standoff

It looks like the Brits, the Germans, and the French are offering another deal.

Iran rejected a previous EU compromise last August, but the new package - which has yet to be formulated - is expected to offer more technical aid for Iran's nuclear programme, perhaps including help building reactors.

Now the Europeans can show that the Iranians are being unreasonable and breaking the Olive Branch if they reject this compromise. If the enticements are pretty decent and the Iranians get some light water reactors out of the deal then they can't raise that whopper that they need nuclear energy for peaceful power generation instead of bombs. If they reject it then Europe can throw up their hands and say we can't deal with these people we need sanctions.