hi j-t,
i think iran has more of a purpose than the destruction of israel.
iran is bent upon its own survival.
israel is part of its survival strategy. it sees israel as a regional threat and a theological sore.
but take a larger view of iran's desires and fears and it is possible to see how pressure can deliver results.
i think they were scared witless by the deterioration in the value of their currency. in my view it is this that is drawing them to the table finally.
i also wonder if the currency failure was the result of a virus, like the problems with their nuclear facility.