EMP

With all this MSM talk about Iran getting Nukes and what if Israel tries to bomb them, that it would start WWIII.
Doesn't have to be that way.
Simple solutions work better then complicated solutions.
Isreal could launch a Satelitte (communication) and stow away a small Nuke device(unknown). This sate can circle right over Iran and if they seem ready to create an A-bomb and start preparing Ballistic missiles the Sate could have an orbital problem and explode over Iran creating an EMP that would send them and weapons systems to the stone age. Of course the nuke was the "power source."
No more threat at least from them.
Israel does have that capability, so my question is "Why Not"?