Cross My Heart In August 2015 I was in Kharkiv making a film with some Ukrainian colleagues about army psychologists and their patients. We had tracked down the psychologists and found three patients—a wounded fighter, a former prisoner of war and a woman refugee from the Donbass—who were willing to talk on camera. All we needed then was three or four minutes of front-line city atmosphere for background. Kharkiv lives parallel lives: summertime easy living and a barely discernible war. More than 100,000 refugees try to remain invisible, though the queues for handouts are plainly to be seen. In a…