MOSOCW (Dispatches) – Russia’s ambassador to international organizations in Vienna says Iran’s demand from U.S. administration to guarantee the landmark nuclear deal signed by Iran and world powers in 2015 is not only logical, but also “corresponds ... to elementary common sense.” Mikhail Ulyanov made the remarks in a Sunday tweet while answering to a follower who asked him about his opinion on why the U.S. administration of Joe Biden refuses to guarantee the deal even through his own presidency. Iran’s Ambassador to the United Nations Majid Takht-Ravanchi told reporters in early July that the Islamic Republic had asked Washington to provide strong guarantees that it will never again withdraw from the nuclear deal unilaterally.