It says it knows more than it did about Iran's programme, but that it has not yet received complete information.

ECONOMIST: Nuclear proliferation

Mr Hague said the latest report from the International Atomic Energy Agency "provides further evidence" of why the international community should be concerned about Iran's nuclear programme.

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The meeting also covered topics which the EU-US largely agree on - including worries about Iran's nuclear programme, efforts to increase clean energy technology and avoid climate change, as well as supporting democracy after the Arab Spring.

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It was revelations about Iran's hidden nuclear programme, and the interception of a shipment of nuclear parts bound for Libya (which hastened Libya's decision to tell all about its dealings with the Khan network), that brought Mr Khan down with a thud.

ECONOMIST: Nuclear proliferation

The fear is not that Messrs Putin and Bush will find it hard to talk, but that there is little left to talk about: the main argument over Iraq is over, the delayed Moscow treaty on disarmament has been ratified, and Russia is said to be paying more heed to American worries about its support for Iran's nuclear programme.

ECONOMIST: Russia