Q : In a context in which Iran has reneged on a large number of its commitments and even exceeded the limits set out in the 2015 nuclear deal, do you think that it will be necessary to negotiate a new agreement just to establish a path toward returning to the situation that existed in 2015? A : Iran's violations of its nuclear commitments under the Vienna agreement are extremely troubling. Their consequences, notably with respect to enrichment, are serious. They undermine the benefits of (…)