JIM TYNEN: Obama And His Caste. “I know Hyde Park, the president’s former home. It is an enclave, a bubble, plunked into the South Side. I’ve worked on campuses and in downtowns. The modern government and corporation seal themselves off from the less tidy aspects of life, as they seal themselves off from bad weather and noise. . . . Obama is like that: the cocoon of his mind and thoughts and ideology blurs out the unseemly sights and smells of cities or, say, failed stimulus programs.”