U.S. Envoy Wittkopf stated that previous discussions with Iran have clarified the situation, revealing that no agreement could be reached on 'zero enrichment,' shutting down three nuclear facilities, avoiding stockpiling nuclear materials, and transferring all enriched materials to the United States. According to Jin10, these talks have highlighted the challenges in negotiating nuclear terms with Iran, as both parties remain at an impasse over key issues. The inability to reach consensus on these critical points underscores the complexity of diplomatic efforts in addressing nuclear proliferation concerns.