VIDEO: Retracing Grapes of Wrath route

In The Grapes of Wrath, John Steinbeck describes the harrowing journey of the Joad family - migrant workers forced to leave their farm during the Great Depression - a story still relevant to those facing the realities of America's current economic crisis, as Paul Mason found when he retraced their route.

Broadcast on Thursday 28 July 2011.

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