For the second time in recent months, the U.S. Department of Labor has extracted penalties from a California farm business blamed for the deadly crash of a vehicle transporting migrant field workers to their jobs.
A two-year investigation by the Midwest Center of Investigative Reporting found, Monsanto and its counterpart in GMO corn production, DuPont Pioneer, have faced repeated allegations of labor violations over the past decade related to a growing use of farm labor contractors. Here's a look at some of