The Biden administration placed new sanctions against Russia’s central bank, its National Wealth Fund, and its Ministry of Finance, the U.S. Department of Treasury said in a news release. The moves effectively prohibit Americans from doing any business with those Russian entities. Specifically, the Treasury said that the move, announced Monday, prohibits “United States persons from engaging in transactions with the Central Bank of the Russian Federation, the National Wealth Fund of the Russian Federation, and the Ministry of Finance of the Russian Federation.” “This action effectively immobilizes any assets of the Central Bank of the Russian Federation held in the United States or by U.S. persons, wherever located,” the release said. In response, the Central Bank of Russia suspended currency interventions in support of the ruble, the head of the regulator, Elvira Nabiullina, told state-run RT on Monday. Nabiullina said that the regulator cannot carry out such actions because of assets freeze …