It's clear that the US wants to reopen dialogue and we've seen a lot from Obama; his praise of the Iranian people, his shift in language, his constant stressing of the legitimate interests of Iran and its dignity, civilization and so on ... On the other hand, the political situation in Iran is going to make it difficult for the regime to respond positively to that. Domestically, it would be very hard for Ahmadinejad to go too far too quickly in responding to the US.