U.S. Ambassador to the United Nations Linda Thomas-Greenfield on Sunday said the U.S. and the U.N. won’t stop ramping up sanctions and penalties against Russia until the country backs down from its attacks on Ukraine. “The Russians can be assured that we will continue to put more and more sanctions as they continue to press more on the Ukrainian government,” Thomas-Greenfield said on NBC’s “Meet the Press.” “We will escalate as the Russians escalate. And that’s exactly what we have done,” she said. (https://news.yahoo.com/russia-feel-pain-thomas-greenfield-172151829.html) The ambassador’s comments come amid the fourth day of Russia’s invasion into Ukraine, where fighting continues to escalate as the U.S. and its allies pile sanctions onto the Russian president and the country’s financial institutions. The penalties have been gradually added over the last few days rather than all levied at once on Thursday when the attacks started, a move that Thomas-Greenfield said has been intentional.