The world is at a turning point – that's the verdict of German Chancellor Olaf Scholz, who warned the annual economic forum at Davos that more than Ukraine is at risk in Russia’s war. He said Germany, and the European Union, are doing their best to wean themselves off Russian energy and stop feeding the war machine that’s devastating Ukraine. But Robert Habeck is warning there’s a roadblock to an EU embargo. The German Vice-Chancellor is naming names, telling Christiane that one EU nation is dragging its heels. The Green Party politicians joined her this week soon after the catastrophic mass shooting in Texas. A 2009 shooting in a German high school spurred immediate legislation, and Habeck says that like so many others watching from overseas, he cannot understand America’s gun laws.  Also on today's show: Historian Heather Cox Richardson, Nobel laureate and author Dr. Denis Mukwege. To learn more about how CNN protects listener privacy, visit cnn.com/privacy Learn more about your ad choices. Visit podcastchoices.com/adchoices