Judy Woodruff reports from Pennsylvania about the Democratic primary, where former Republican Sen. Arlen Specter is in a fight for survival as a long-shot candidate gains ground on the incumbent senator.
In part one of the Patchwork Nation series examining communities across the U.S., Ray Suarez looks at Philadelphia's shift from a city of skilled blue-collar workers to one where just 1 in 20 workers makes things for a living.
As part of the kick-off to a series this week on the PBS NewsHour examining the communities of Patchwork Nation, project director Dante Chinni takes viewers on a drive down Germantown Ave., revealing the many "cities" that make up Philadelphia.
During the last two decades of his life, Marcel Duchamp appeared to have given up art for chess, publically claiming he had gone underground. But hidden in his New York apartment was the final, enigmatic piece he had been working…