A National Intelligence Estimate on Iran’s nuclear capabilities was presented to President Bush and Vice President Dick Cheney on November 28, 2007. It “reported that Iran halted its weaponization program in 2003 ‘primarily in response to international pressure’ and that the intelligence agencies were ‘moderately confident’ that ‘Tehran had not restarted its nuclear weapons program as of mid-2007.’ But it added that ‘we do not know whether it currently intends to develop nuclear weapons.’ Sophisticated readers understood the report did not mean Iran had given up its aspirations for nuclear weapons. The bomb-making program was the least challenging part of the development of nuclear weapons and the easiest to resume. Iran was still working to master the more difficult science of enriching uranium, the real key to any weapons program; once it succeeded at that, it could restart the bomb-making program that would put the newly enriched uranium to use.”
– Peter Baker, Days of Fire, Page 573