The European Union is still working on its response to U.S. President Donald Trump's promise to scuttle the Iran nuclear deal unless more is done to counter Iran's destabilizing activities in the Middle East. According to media reports, the EU3 powers -- France, Germany and the United Kingdom -- are working on a proposal to meet Trump's demands through new sanctions. EU foreign policy chief Federica Mogherini said March 19 that there was no formal EU proposal in place for such sanctions, but she stopped short of denying that discussions over such a proposal were occurring. In addition, Mogherini urged adherence to the bloc's consistent position that the Iran nuclear deal, formally known as the Joint Comprehensive Plan of Action (JCPOA), must succeed before the bloc will agree to further action against Iran....