BROADCASTS.com

Russia is stepping up its bombing campaign against Ukraine. So for weeks, Ukraine\u2019s President Volodymyr Zelensky has been making a desperate plea to the United States and its NATO allies to impose a \u201cno-fly zone\u201d over the country \u2014 to keep Russian warplanes out of the sky. But a no-fly zone hinges on the notion that if a Russian plane violates the terms, it will be shot down. And the idea of entering into armed combat with a nuclear power is a clear and potentially catastrophic risk for Western leaders. \n\nThis week, Zelensky is planning a virtual address to Canada\u2019s House of Commons and the U.S. Congress, in the hopes of winning more support in his country\u2019s fight against Putin\u2019s military. \n\nToday on Front Burner, we speak to University of British Columbia\u2019s Allen Sens about the case for and against a \u201cno-fly zone,\u201d whether there\u2019s a red line in this war, and the ways in which it could escalate.