‘Unlikely’ Putin will use nukes, says ex-U.S. NATO envoy

On top of the very real battles unfolding in Ukraine, the war of words between Russia and the West has entered a new and jarring phase in recent days in response to Vladimir Putin’s thinly-veiled nuclear threats. ‘The West Block’ host Mercedes Stephenson speaks with Kurt Volker, former U.S. ambassador to NATO, on how the West should respond to Russia’s continued escalation.