Defended the wall the smoking gun.
This may be it.
More worrying evidence that Iran could be developing a nuclear weapon.
One western diplomatic source with knowledge of Iran's nuclear program tells CNN the newly reviewed document is authentic, describing its content as a alarming.
Recent in the document talks of a 4 year Iranian program to develop a neutron initiator, a highly specialized component of a nuclear btnator.
Weapon’s expert speaking on CNN said it could be no mistake of attitudes.
And it is not the money of work like Iran was goanna spent and it is not the people effort.
This had no civil application and the only conclusion we can reach is this is part of a plan to develop the capability to be able to build this part for a nuclear weapon’s program.
Crucially there is no date on the document.
But the newspaper which originally broke the story, the London Times, quotes security source, the saying related to 2007, far late than US intelligence estimates,
the time that Iran carried out the work on nuclear weapon.
US intelligence assessment previously said Iran quit working on the weapon in 2003.
It's been just a few month since Iran confirm the existence of a secret nuclear facility near the shear holly city, quoting widespread international concerns.
Western diplomats say the latest secret document adds what they called a growing body of evidence backing deep international concerns over Iran's nuclear program.
Endless say the timing of the document leaking ahead of a key UN Security Council meeting, maybe significance.
It's a single target of this document by think of Russia and China.
Those are the Security Council firm members who've been most reluctant to get down the section fruit.
Officials of the UN nuclear watchdog agency, the IAEA, confirmed they are looking into this Iranian document but say they've not yet formally asked Iran to explain it.
But with the downing content not made so public, that makes some changes.
Marty Chance, CNN Moscow.