Iran is either doing the usual "leashed dog" rhetoric game or they really mean it.
Either way, Israeli intelligence WILL infiltrate their facilities and WILL know exactly what is being developed. Probably did it long ago. The minute there is a real impending threat present in one or more of those facilities....well you already know what's gonna happen.
It's just a matter of when and with what ordinance they do it with.
By then Obama will be lounging in his Cuban villa, smoking Cuban cigars with Raul and Fidel...