Whatever Senator Barack Obama meant by his less than artful remarks about small-town Pennsylvanians "bitter" over lost jobs, he certainly turned a lot of attention last week to the decline of the American hourly worker, bitter or not. "The most important model that rolled off the Detroit assembly lines in the 20th century," said Harley Shaiken, a labor economist at the University of California at Berkeley, "was the middle class for blue-collar workers."
