Some Pentagon analysts have suggested that the entire US strategy towards Iran, unlike with Iraq, is rather a carefully orchestrated escalation of psychological pressure and bluff to force Iran to back down. It seems clear, especially in light of the strategic threat Iran faces from US or Israeli forces on its borders after 2003 that Iran is not likely to back down from its clear plans to develop the full nuclear fuel cycle capacities and with it, the option of developing an Iranian nuclear capability.
The question then is what will Washington do? The fundamental change in US defense doctrine since 2001, from a posture of defense to offense has significantly lowered the threshold of nuclear war, perhaps even of a global nuclear conflagration.
[...]
Clear from a reading of their public statements and their press, the Iranian government knows well what cards they hold and what not in this global game of thermo-nuclear chicken. Were the Bush-Cheney-Rumsfeld axis to risk launching a nuclear strike on Iran, given the geopolitical context, it would mark a point of no return in international relations. Even with sagging popularity, the White House knows this. The danger of the initial strategy of pre-emptive wars is that, as now, when someone like Iran calls the US bluff with a formidable response potential, the US is left with little option but to launch the unthinkable nuclear strike.
F. William Engdahl | Calculating the Risk of War in Iran
Thanks to Doug Alder for putting me on to F. William Engdahl's material. He does so by pointing to an Engdahl-authored Asia Times article putting the economic implications of the Iran Oil Bourse into sober perspective.