This sound like a good idea and I'm sure it makes anyone American absolutely brim with patriotic pride. It's also a completely idiotic thing to do. Creating malware takes a lot fewer resources than creating real weapons and the US and West in general is far more vulnerable to malware than Iran or most small countries due to the economy's greater mechanization. What happens when there is blowback?
Not to mention that further tensions is not desired right now -- with Obama neck and neck with the Republican and Israel getting impatient and Iran getting offended, this could turn very nasty, very soon (and the west can ill afford another war in the middle-east with the current economy and gas prices).
I hope the regime fall, but it has to be internal or it won't stick.