The existing deal already has enforcement mechanisms under Article 37. If Iran violates the deal, the UNSC sanctions are reinstated by the P5+1. If the P5+1 vio

The existing deal already has enforcement mechanisms under Article 37. If Iran violates the deal, the UNSC sanctions are reinstated by the P5+1. If the P5+1 violate the deal, Iran scales back its own commitments. All of this is in the existing treaty. And there is no guarantee that meeting the new demands would result in sanctions stopping, rather than in more sanctions and demands.