With President Biden warning on Thursday that Russia was “moving toward an imminent invasion” of Ukraine, CBS News senior foreign correspondent Charlie D’Agata said the message to Americans in the country could not have been any clearer: Get out before hostilities start. “The situation could worsen very quickly, and we’re very worried about that and are urging all Americans to leave the country now,” Chargé d’Affaires Kristina Kvien, the most senior U.S. diplomat in Ukraine, told D’Agata. Her call was made more urgent by satellite images appearing to show even more Russian forces, and a new pontoon bridge just a few miles from the border with Ukraine. (https://news.yahoo.com/top-u-diplomat-ukraine-urges-183623112.html) On Thursday, an American official told CBS News that not only were Russian troops moving out of assembly areas, closer to the Ukrainian border and into attack positions, but the Russian units remaining behind had begun fortifying their positions. On Monday, the U.S. Embassy in Kyiv shut down and relocated a core team to an undisclosed location in the western city of Lviv, close to the border with Poland.