“If we want things to stay as they are, things will have to change.” Thus wrote the Sicilian writer Giuseppe di Lampedusa, in The Leopard. This seems to me the guiding principle of the Obama presidency. To many Americans, he seems a flaming radical. To me, he is a pragmatic conservative, albeit one responding to extraordinary times. In his own way, Mr Obama is following the path trodden by Franklin Delano Roosevelt.