This is a superb analysis of the Iran/Israel situation as it stands:
Washington, DC - President Barack Obama has finally begun in recent months to signal to Israel that the United States would not get involved in a war started by Binyamin Netanyahu without US approval. If it is pursued firmly and consistently through 2012, the approach stands a very good chance of averting war altogether. If Obama falters, however, the temptation for Netanyahu to launch an attack on Iran, indulging in what one close Israeli observer calls his "messianism" toward the issue of Iran.
Netanyahu, like every previous Israeli prime minister, understands that an Israeli strike against Iran depends not only on US tolerance, but direct involvement against Iran, at least after the initial attack. In May 2008, his predecessor, Ehud Olmert, had requested the approval of George W Bush for an air attack on Iran, only to be refused by Bush.
Netanyahu apparently feels, however, that he can manipulate right-wing Israeli influence on American politics to make it impossible for Obama to stay out of an Israeli war on Iran. He has defied the Obama administration by refusing to assure Washington that he would consult them before making any decision on war with Iran.
...[U]nless Obama warns Netanyahu publicly that an attack against US wishes would indeed mean he is on his own, the chances of deterring him and avoiding war with Iran will be sharply reduced.
All well and good, but, really, you'd think the son of a great historian would be able to clearly see Obama's situation, see why he can't go into another war with an Islamic nation. If Bush couldn't do it, how the fuck does he think Obama can?