The Observer reports:

Britain and the US have raised fears that Russia has shared nuclear secrets with Iran in return for Tehran supplying Moscow with ballistic missiles to bomb Ukraine.

During their summit in Washington DC on Friday, Keir Starmer and US president Joe Biden acknowledged that the two countries were tightening military cooperation at a time when Iran is in the process of enriching enough uranium to complete its long-held goal to build a nuclear bomb.

British sources indicated that concerns were aired about Iran’s trade for nuclear technology, part of a deepening alliance between Tehran and Moscow.

On Tuesday last week, Antony Blinken, the US secretary of state, made a similar warning on a visit to London for a summit with his British counterpart, David Lammy, though it received little attention, as the focus then was the US announcement of Iran’s missile supply to Moscow.

“For its part, Russia is sharing technology that Iran seeks – this is a two-way street – including on nuclear issues as well as some space information,” Blinken said, accusing the two countries of engaging in destabilising activities that sow “even greater insecurity” around the world.

Britain, France and Germany jointly warned last week that Iran’s stockpile of highly enriched uranium had “continued to grow significantly, without any credible civilian justification” and that it had accumulated four “significant quantities” that each could be used to make a nuclear bomb.

But it is not clear how much technical knowhow Tehran has to build a nuclear weapon at this stage, or how quickly it could do so. Working with experienced Russian specialists or using Russian knowledge would help speed up the manufacturing process, however – though Iran denies that it is trying to make a nuclear bomb. [Continue reading…]