In ten weeks of conflict Vladimir Putin has not been afraid to rattle the nuclear sabre. Western leaders have responded by tempering their own rhetoric – but the risk of nuclear war is greater than it has been for more than half a century. Anne McElvoy asks Rose Gottemoeller, a former deputy secretary-general at NATO, whether Russia will launch nuclear weapons and, if it did, what the West should do. And, has NATO proved its worth? Please subscribe to The Economist for full access to print, digital and audio editions: www.economist.com/podcastoffer   See acast.com/privacy for privacy and opt-out information.