I think dialogue is always a good thing. To consult together with other people to resolve differences is very important.
If we look, however, to Iran's record when it has been engaged in dialogue—I am thinking in particular of its dialogue with Europeans some five or six years ago. Iran used that dialogue as an opportunity to deflect criticism. It wouldn't allow certain things to be discussed, and we didn't see any improvement in the situation on the ground.
I'm saying there are two messages. One of them is that dialogue is good, but the other is that your partner in dialogue has to come to the table with some integrity and some demonstration of good faith that they are prepared to listen and to change.