KKK idiot David Duke and the Iranian Government are Holocaust deniers. If a Nuclear threat from Iran becomes a clear and present danger, Israel may deny or destroy this threat in a non-deniable way. Let us Pray Iran does not have a deathwish.
Unless things have radically changed, what Israel wants it gets when DOD is concerned. So if they decided to turn some Iranian sand into glass with nuclear weapons the US would back that decision.