The Iranians already want to renegotiate the EU/IAEA nuke deal. Story here.
I say: no deal with the Iranian mullagarchy is even worth the paper it's written on. It will be soon time for HARDBALL - I don't mean it's time to send them that rude blatthering Left-wing cable host, either (although I'm sure that Matthews would bug the merde out of them!); I mean the USA must get directly involved, and the matter MUST be brought to the UNSC for a sanctions resolution. NOW.