The Circle of Poison delves into the political history of pesticides in the United States and the machinations of big industry.

Today, at least 75 percent of the global pesticide trade is controlled by six large agrochemical companies – Monsanto, Dow, Bayer, Syngenta, Du Pont and BASF. These corporations form powerful lobby groups which drive and shape legislation that regulates farming and food production. This influence has protected the industry, particularly in the US.

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