The EU’s top diplomat says Washington’s decision to step away from a landmark nuclear deal would be counterproductive, and insisted that other disputes with Tehran should be tackled in other ways. Federica Mogherini, who met with US Secretary of State Rex Tillerson in Brussels on Tuesday, said that the EU attaches great importance to upholding the agreement. Scrapping the deal “would not put us in a better position to discuss all the rest, on the contrary,” Mogherini added. Tillerson said that “Iran is carrying out a number of other destabilizing activities throughout the region” and called for joint action to counter it, AP reports.