The new DG of the IAEA, Rafael Mariano Grossi, charged upon taking office on December 3 that Iran has not yet provided an explanation for uranium particles found at a Tehran warehouse. He also protested the abusive behavior of the Iranian authorities toward the IAEA inspector at the end of 2019. However, he has not addressed Iran’s violations of the 2015 nuclear agreement, suggesting that he would like to avoid an antagonistic relationship with Tehran.