In this CNN appearance, presidential intelligence briefer and 35-year national security leader Beth Sanner breaks down the heightened tensions between Russia and Ukraine, as well as how events are escalating at the border between the two countries. As a senior-most analyst in the U.S. Intelligence Community and the former Deputy Director of National Intelligence, Sanner has observed Russia for several years and speaks expertly to its goals in this conflict, as well as when a potential planned offensive could take a place.