Anderson Cooper 360

David Remnick: "We are looking at the possibility of a Cold War style conflict"

President Obama is warning there will be “costs” for any military invasion of Ukraine. The country was once part of the Soviet Union. Its pivotal location between Russia and the rest of Europe is a big part of the story. New Yorker Editor David Remnick tells Anderson that "Putin is playing with fire."

Tom Foreman breaks down why Ukraine is important both politically and geographically.