U.S. told of Iranian effort to create nuclear warhead

The Washington Times carries an unsurprising article on Iranian efforts to produce a nuclear warhead. My bet is that neither the US nor the EU will do anything about it that has any teeth.

Recent intelligence shows Iran has been working to produce a missile re-entry vehicle containing a small nuclear warhead for its Shahab missiles and has encountered problems developing a reliable centrifuge system for uranium enrichment, U.S. officials said.
The officials, who discussed the intelligence on the condition of anonymity, said Iran's new nuclear warhead program includes what specialists call the basic 'physics package' for fitting a nuclear bomb inside the nose cone of a missile.