Deputy Secretary General of the European External Action Service (EEAS) Enrique Mora and Iran’s chief nuclear negotiator Ali Bagheri Kani and delegations wait for the start of a meeting of the JCPOA Joint Commission in Vienna, Austria December 17, 2021. EU Delegation in Vienna/EEAS. Photo: Handout via REUTERS There are only “weeks” left to strike a nuclear agreement with Iran during negotiations in Vienna which are set to resume on Monday, according to US National Security Adviser Jake Sullivan. “We are not circling a date on the calendar in public, but I can tell you that behind closed doors we...