"Useful insights often must be seen through a glass darkly. But some can be pulled through the smoke and mirrors shrouding the wanderings of Iranian scientist Shahram Amiri, who is now back home in Iran after 14 months in the U.S. as guest of the CIA.
The confusing/amusing spin applied by both countries to L’ Affaire Amiri can detract from the real issues. The facts beneath the competing narratives permit a key conclusion; namely, that U.S. intelligence has learned nothing to change its assessment that Iran halted work on the nuclear-weapons related part of its nuclear development program in the fall of 2003 and has not restarted that work.
That twin judgment leaped out of a formal National Intelligence Estimate, “Iran: Nuclear Intentions and Capabilities,” [.pdf] approved unanimously by all 16 U.S intelligence agencies in November 2007.
That NIE substituted a rigorous evidence-based approach for the knee-jerk premise of earlier estimates that Iran had already decided to develop nuclear weapons and the question was just when, not if, it would eventually acquire them."