Any negotiation with the USA or anyone else is a distraction. The fact that negotiations are happening means that they've already decided on a course of action. The USA, of course, will deny permission, then look the other way as some electronic or radar malfunction is used as the official reason that we didn't see any Israeli warplanes. This gives us an out and allows the good guys to pound the pogies out of the bad guys in the process. The Russians will be watching the whole thing and all we have to do is play Sergeant Schultz ("I know nothing!").
"The USA, of course, will deny permission, then look the other way as some electronic or radar malfunction is used as the official reason that we didn't see any Israeli warplanes."Gosh, you think the Arabs will buy that? You think they'll just shrug their shoulders and say, "$hit happens"?
(Yes, I know Iranians are Persian, not Arabic, but they are Muslims.)
Better that the Great Satan do this than allowing "the Jews" to do their dirty work for them.