So if the PMD information really is so essential, why would the West agree to give up on this issue?
The answer is, the appearance of a deal may have become more important than the content of the deal. And the Iranians are fully aware of this.
Iran has already drawn its line in the sand. “PMD is out of question. It cannot be discussed,” was the quote by an Iranian official in the Reuters article.
And the West has not lately been quite as vigilant about insisting its own lines in the sand are not re-drawn by its enemies.