Something mysterious happened when Barack Obama entered the Oval Office in 2009. Something vanished from that room, and no one could quite explain why. It was a bust of Winston Churchill – the great British war time leader. It was a fine goggle-eyed object, done by the brilliant sculptor Jacob Epstein, and it had sat there for almost ten years. But on day one of the Obama administration it was returned, without ceremony, to the British embassy in Washington. No one was sure whether the President had himself been involved in the decision. Some said it was a snub to Britain. Some said it was a symbol of the part-Kenyan President’s ancestral dislike of the British empire – of which Churchill had been such a fervent defender. Some said that perhaps Churchill was seen as less important than he once was. Perhaps his ideas were old-fashioned and out of date.