'Breaking Bad' props added to Smithsonian collection

The stars of award-winning TV show "Breaking Bad" were on hand Tuesday to donate memorabilia to the Smithsonian's National Museum of American History. Among the items donated are the "Heisenberg" hat worn by chemistry teacher-turned-drug lord White (played by Bryan Cranston) and the yellow lab suits and gas masks worn by White and Jesse Pinkman (played by Aaron Paul). "Breaking Bad" stars Cranston as White, who becomes a meth manufacturer in the New Mexico city of Albuquerque, having learned at