Let me just quickly add to what Dr. Shaheed has said. I think that we have to see the questions of improvements in a broader context of what is happening in Iran today. The Iranian political elites are under pressure both from above and below. They need to re-engage internationally but they also need to appease their own populations because they fear a resumption of the popular uprising that Iran witnessed in 2009. So the point is that it's not just about what the political elite wants to do, it's under pressure. That is why I think there is an opportunity beyond the short-term concessions they've made simply to get it their way on the sanctions to make it clear to them that re-engagement will come at a cost in terms of improving their human rights record.
If I may just add, the example I gave of the Baha'i community shows that Iran is moving in two opposing directions. On the one hand, there is an unprecedented outpouring of sympathy for this persecuted minority, but because of that the hard-liners are escalating and becoming even more violent and fanatical. So we may see opposing tendencies at the same time.