I just had to laugh, reading that the US administration is warning Iran of "serious consequences" for pursuing nukes.
What are they going to do? Shake a finger at the Ayatolla? Declare Iran to be in the "axis of evil" in a State of the Union address? Wait.... they already did this.
Who do they think they are kidding? There is NO way the UN security council is ever going to pass serious sanctions (i.e. that would stop the flow of Iranian oil). And it is also inconcievable that anyone would undertake military action against Iran (i.e. because it would be ineffective, and US politicians would anger voters and be turfed from office). Not as if sanctions have ever worked, but that's a different subject.
The US administration should just shut up and drop the whole issue of Iranian nuclear development before it looks even sillier than it already does. All these toothless admonishments only serve to underline how little influence, and power, the US has in this situation.