sure, but how can he "not talk". that implies he wasn't asked. he has no right not to talk. if he is sending a code to his real sources, what this really means is not that he didn't talk, it means that Fitzgerald didn't ask him. that's why my faith in Fitzgerald is slipping. I really think the best thing that could happen now - is for this whole thing to just close up. I don't think Fitzgerald is going to be able to uncover any real truths in this, Miller is not going to talk. and absent that, I am worried he may just go for some "low hanging fruit" indictment of Rove.
I don't think Fitzgerald could even get the lowest hanging fruit on Rove without answering some other questions about who in the CIA have been talking to reporters.