“Excessively punitive and comprehensive trade and financial sanctions that effectively isolate a nation frequently fail, while deploying incremental and more targeted sanctions creates more diplomatic leverage, not less. Sanctions work best as one of a number of diverse tools used to achieve a larger set of attainable strategic policy goals. In its undisciplined imposition of sanctions against Iran, the U.S. is waging an unending and devastating economic war against an entire civilian population in the name of trying to save it from its government.”