I think the odds of nuclear strikes are far higher than people realize. The media are basically giving zero odds so granted, that's a pretty low bar.
Netanyahu has kind of painted hmself into a corner, never a good thing to do diplomatically. He has basically said a nuclear, or near nuclear, iran is an existential threat for Israel. No one really doubts the accuracy of that either. He has said that Obama refuses to draw a red line beyond which the Us will attack. The Washington media were full of planted editorials today disputing this, but even if Obama has said a nuclear iran is unacceptable, no one really trusts him to live up to this commitment. When has he stood up to radical islamists anywhere?
So Israel is left in the lurch, facing an existential threat without big brother covering their butts. If Israel doesn't thnk they can take out Iran's facilities with conventional weapons, then the only remaining answer is to go nuclear. Or, if they mount a conventional strike, then are hit by devastating counterattacks, not only from iran but Egypt, Lebanon, maybe even turkey, or if the initial strike fails, what do they do? My answer is take out Iran and maybe Egypt once and for all and deal with the consequences later.
The alternative explanation is that Netanyahu is bluffing, no existential threat exists and there is no imminent crisis. This is clearly the line the WH is peddling. It puts Netanyahu in a difficult spot, although a self-created one. Since he is nobody's fool and had to anticipate this outcome, it makes me very pessimistic.