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This story was done in collaboration with VICE News.

By Michael Grabell, ProPublica

A photo from the CBS documentary 'Harvest of Shame, left, and Chicago temp workers on a bus in the early morning hours of Jan. 18, 2013 Photo: CBS News, Sally Ryan for ProPublica

A photo from the CBS documentary ‘Harvest of Shame, left, and Chicago temp workers on a bus in the early morning hours of Jan. 18, 2013 Photo: CBS News, Sally Ryan for ProPublica

CRANBURY, N.J. – Half a century ago, the legendary journalist Edward R. Murrow came to this pancake-flat town in central New Jersey to document the plight of migrant farmworkers for a television special called “Harvest of Shame.”

Today, many of Cranbury’s potato fields have been built up with giant warehouses that form a distribution hub off Exit 8A of the Jersey Turnpike. But amid this 21st century system of commerce, an old way of labor persists.