Author Ann Patchett's bookstore

Ann Patchett doesn't just write books, like her latest bestseller, "Commonwealth"; she sells them, at Parnassus Books in Nashville, her very own bookstore. As you might expect from a novelist, there's a good story behind Parnassus Books, and it's one that's bigger than just one brick-and-mortar retailer. Lesley Stahl of "60 Minutes" reports.