sincere about trying to resolve the nuclear issue peacefully and they considered that a priority. a high enough pri they were willing to cooperate with us on sanctions. if they saw us walking away or more specifically if they saw the u.s. congress effectively vetoing the judgment of 99% of the world community that this is a deal that resolves the iranian weapons program, nuclear weapons program, in a equitable way, the sanction system unravels. and so we could still maintain some of our unilateral sanctions, but it would be far less effective, as it was before we were able to put together these multi-lateral sanctions. so maybe they don t get $100 million billion.