US preparations for an air strike against Iran are at an advanced stage, in spite of repeated public denials by the Bush administration, according to informed sources in Washington.

The present military build-up in the Gulf would allow the US to mount an attack by the spring. But the sources said that if there was an attack, it was more likely next year, just before Mr Bush leaves office...

Mr Bush...leaves office in January 2009 and has said repeatedly that he does not want a legacy in which Iran has achieved superpower status in the region and come close to acquiring a nuclear weapon capability. The logic of this is that if diplomatic efforts fail to persuade Iran to stop uranium enrichment then the only alternative left is to turn to the military...

Support for negotiations comes from centrist and liberal thinktanks. Afshin Molavi, a fellow of the New America Foundation, said: "To argue diplomacy has not worked is false because it has not been tried. Post-90s and through to today, when Iran has been ready to dance, the US refused, and when the US has been ready to dance, Iran has refused. We are at a stage where Iran is ready to walk across the dance floor and the US is looking away."

He is worried about "a miscalculation that leads to an accidental war..."

For the complete article, please visit The Guardian website.