Former top U.S. diplomat deplores policy toward Iran 'untethered to any coherent strategy'

President Trump seriously miscalculated when he scrapped the U.S.-Iran nuclear deal, embarking on a policy “untethered to any coherent strategy,” according to a scathing assessment by William Burns, the former U.S. diplomat who negotiated the nuclear agreement. Burns said the move was certain to embolden hard-liners in Tehran and contribute to military tensions in a way that will backfire against the U.S. — which was already happening this week, as news broke that Iran had shot down an American military drone.