like franklin and elnoor roosevelt were on hand when the memorial was unveiled early in 1933, fittingly so at the dawn of a new deal and a decade of historic strides for organized labor. >> each week at this time "american history tv" features an hourlong conversation from c-span's a sunday night interview series "q and a." here's this week's encore "q and a" on "american history tv." >> this week on "q and a," our guest is historian joyce appleby, author of the new book "on the history of capitalism, called "the relentless revolution." >> joyce appleby, why did you call the book on the history of capitalism "the relentless revolution"? >> because that's really what the history of capitalism has been, one revolution and social arrangement, technology, workplaces, areas of profits, production centers. it's been one revolution after another. i think the austrian economist said it as well, capitalism is about creative part. we get the creative part, which is wonderful, new technology, but we sometimes forget the destructive part. every invention that succeeds wipes out its predecessor, and