You don't have any communication between the Israelis and the Iranians. You have all sorts of local triggers for conflict. Having countries act on a hair trigger - where they can't afford to be second to strike - the potential for a miscalculation or a nuclear war through inadvertence is simply too high.
Live by this credo: have a little laugh at life and look around you for happiness instead of sadness. Laughter has always brought me out of unhappy situations.