History teaches us that catastrophe can happen, even if leaders don’t want itPro-Ukraine protest in London, Feb 27At the most dangerous moment in global relations since the 1962 Cuban Missile Crisis, when the US and the USSR stood at the brink of nuclear war and the US Secretary of Defense Robert McNamara left the White House one day literally “thinking that might be the last sunset I saw,” most of us are going through our days as if nothing has changed. On Google Search, people’s top concern in the past two days has been where to find their nearest St. Patrick’s Day parade, followed by queries about Von Miller, the Buffalo Bill’s new defensive end, Liverpool’s victory over Arsenal, an earthquake in...