British GCHQ eavesdropping played role in US intelligence U-turn on Iran   Time lag as agencies checked out conversations  Ahmadinejad basks in ‘great victory’ of report Ewen MacAskill in Washington and Robert Tait in Tehran The Guardian Iran’s president Mahmoud Ahmadinejad addresses thousands of people at a rally in the city of Ilam. Photograph: AFP/Getty Images … Continue reading British eavesdropping on Iran