Over on the main site, I have a piece up based on conversations with sources in Israel, reporting that Israel will not tolerate a nuclear Iran, and that it is prepared to take military action if diplomacy fails to deter this existential threat. I would add, on a more speculative note than I included in my article, that in my view an Israeli military strike is likeliest possible outcome to the Iranian nuclear standoff. To be clear, by likliest, I don’t mean the likely outcome, but merely the most plausible given the other scenarios. The way I see it, there are four main possibilities: 1) Diplomatic and economic pressure successfully thwarts Iran’s nuclear ambitions, 2) President Obama launches a military air strike on Iran, 3) Israel luanches a military strike on Iran, or 4) Iran obtains nuclear weapons.