The Guardian reports Iran has had a breakthrough in its nuclear weapon program:

“The UN’s nuclear watchdog has asked Iran to explain evidence suggesting that Iranian scientists have experimented with an advanced nuclear warhead design, the Guardian has learned.

The very existence of the technology, known as a “two-point implosion” device, is officially secret in both the US and Britain, but according to previously unpublished documentation in a dossier compiled by the International Atomic Energy Agency (IAEA), Iranian scientists may have tested high-explosive components of the design. The development was today described by nuclear experts as “breathtaking” and has added urgency to the effort to find a diplomatic solution to the Iranian nuclear crisis.”

Despite this report, Press Secretary Robert Gibbs seemingly hasn’t even been briefed on the subject:

“[Fox News correspondent Major] Garrett: Two publications, the Guardian and the Weekly Standard, are both reporting about IAEA possession of documents that suggest Iran has tested what they called an advanced nuclear warhead, or a two-point implosion device, and has brought this to the attention of the Iranians in the most recent conversations not only about trying to find out if they’re in favor or not in favor of the low-enriched uranium transfer to Russia, but about this apparent new technology breakthrough. And also, they suggest that the intelligence committees in the House and the Senate have been briefed about this.

I’m curious. Is the White House aware of this? Is it concerned about it in any way, shape or form?

[Press Secretary Robert] Gibbs: Let me check with NSC on that. I don’t have anything on that. (The NSC staff informed Fox later it would have no comment at all on this matter)”