The 2007 National Intelligence Estimate is where the Iran information originated, nothing has changed in the subsequent years.

'Mr Bush expresses anger that US intelligence agencies played a role in removing the option of military action against Iran over its nuclear programme.

He describes the "eye-popping declaration" in the 2007 National Intelligence Estimate (NIE) judging with "high confidence" that Iran had halted its nuclear weapons programme.'

http://www.bbc.co.uk/news/world-us-canada-11722375

Comparing the factual analysis to the propaganda whether on Iraq WMD before the invasion or Irans nuclear programme now is certainly an interesting exercise.