I’m not one of those people who look back on the Cold War with nostalgia. Whatever our current problems, they’re relatively mild to the threat of global nuclear war which used to seriously worry people back in the day. ‘When I were young’, as the saying goes, two massive armed blocs – NATO and the Warsaw Pact – stood face to face, ready to roll at a moment’s notice, while much of the developing world was wracked with proxy wars. It wasn’t a good time. But the very danger of it did have one positive effect – it concentrated minds and made the more sensible of them realize that ‘jaw, jaw is better than war, war’ and that it would really be to everybody’s benefit if agreement was reached to limit the upwards spiral of the arms race.