It probably is the U.S. or Israel, but I've been following the Wikileaks thing and supposedly some of the stuff that is coming out of that is that some other Middle Eastern nations have been urging the U.S. to take military action against Iran's nuclear infrastructure. I don't know if that's true or just propaganda to balance out the clear black ops attacks on it. Anyway my point is that maybe there is more to the possible situation of Iran becoming a nuclear power than we know about.
As far as the Stuxnet worm, apparently it's old news. I was Googling it yesterday and found news stories from September. I think it is just became big news when you consider that two Iranian nuclear engineers were attacked yesterday because clearly Iran's nuclear program is under assault.
