there's a lot of face-saving rhetoric here, and some of it kind of falls apart: if iran could get a better deal by walking away, why don't they? because the truth is that they are walking away, into open russian arms.

but, what that means is that the crux of the argument underlying all this hand-waving is absolutely dead-on: this is the best you're getting. it's this or nothing.

the evidence suggests that iran is not building a bomb in the first place. but, the advanced air defense systems that the russians are moving in negate the need for a nuclear deterrent. and that deflates the issue.

the agreement essentially allows the iranians to dispose of their nuclear waste by sending it to russia.

http://www.youtube.com/watch?v=OlG90dMLo50