The Sochi Winter Olympics are officially open. We'll go on the ground to Sochi to figure out how the opening ceremonies went, but more importantly -- to figure out what events we should be looking out for during the opening weekend. Also, a different kind of games begin, as US diplomats find themselves in the middle of a spat with their European Union and Russian counterparts. And speaking of Russia and diplomacy, and vodka. Marco chats with Mark Schrad, the author of a new book called "Vodka Politics," which is all about the role of Russia's favorite tipple in the country's culture.