The DocumentaryGrapes of Wrath RevisitedGrapes of Wrath RevisitedBBC World Service Duration: 23 minutesFirst broadcast: Tue 19th Aug 2014, 04:32 on BBC World Service OnlineLatest broadcast: Wed 20th Aug 2014, 00:32 on BBC World Service OnlineMark Mardell considers John Steinbeck's novel The Grapes of Wrath, and the relevance of the book's themes in modern America. Show more GenresFactualBrandThe DocumentarySeriesThe Documentary: Grapes of Wrath Revisited Source: BBC Online