Laws in Montana, Utah, North Dakota, Missouri, Kansas, Iowa and North Carolina have also made it illegal for activists to smuggle cameras into industrial animal operations. iStockphoto hide caption

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Judge Strikes Down Idaho 'Ag-Gag' Law, Raising Questions For Other States

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A Humane Society investigation of a Wyoming pig breeding facility to the introduction of an ag-gag bill in Wyoming, which eventually failed. Courtesy of Humane Society of the U.S. hide caption

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Courtesy of Humane Society of the U.S.