U.S.-Iran: war, hard conversations, and then what?

The paradox of U.S.-Iranian negotiations in Islamabad is that it is in the interests of both parties that they are successful and that it is possible to accomplish a win-win outcome, but only if both parties have a realistic approach and common trust. Unfortunately, the deficiency of this, and the failure of the talks will cost not only their parties but besides disastrously affect global safety and the economy.