"If these documents are genuine... ."
The Times of London has published what it claims to be a leaked Iranian memo suggesting that the country was indeed working on a nuclear weapon as recently as 2007. The document refers to uranium deuteride or UD3, a neutron source specifically used in atomic weapons.
Now the question becomes, "is this document genuine?" Is it something ginned up by a Western or Israeli intelligence agency? It's not as though the media, particularly the right wing variety, haven't been willing dupes for this sort of thing before.
Remember WMDs and Iraq? Hopelessly doctored nonsense but, run it in the media a half dozen times, and it becomes accepted truth.