The negotiations are not going to conclude with an agreement. It is now apparent, most especially to Iran, that the US would get what it wants, but Iran gets nothing except a "promise" that sanctions might be lifted "sometime" in the future. Perhaps 15yrs from now.
Why the fuck would Iran or anybody of sound mind agree to that?
To the Iranians it must now seem certain that the US is absolutely and completely duplicitous, and they are not to be trusted or believed on any account.
So now the question is, was this US strategy all along? Orchestrate a negotiation the true result would only become apparent to the Iranians at the last moment, and once they reject it as a farce, then point to the Iranians as unrealistic, uncooperative, and of course - by rote - "extremist radicals?" And in the next breath then say "Guess we'll hafta' bomb 'em" ?
I presume that I understand the Iranians. Let ME just say that I AM certain that the US is completely duplicitous and is not to be trusted or believed on any account.