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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Cattle raised at the U.S. Meat Animal Research Center in Clay Center, Neb. A New York Times investigation of animal suffering at the federal research center has prompted a USDA review. Nati Harnik/AP hide caption

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These "enriched cages" from the JS West farm in Atwater, Calif., in 2011 comply with the state's new law. They are larger and allow chickens to perch and lay eggs in enclosed spaces. Jill Benson/AP hide caption

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How California's New Rules Are Scrambling The Egg Industry

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Nestle, the world's biggest food company, manufactures and markets a wide range of food products including dairy, meat, poultry and eggs. Susana Gonzalez/Bloomberg via Getty Images hide caption

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Jeff Jones and his daughters feed grain to their foraging cattle once a day in Callaway County, Mo. They're concerned about the health and environmental effects a potential hog farm next door might have. Kristofor Husted/KBIA hide caption

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Missouri Constitutional Amendment Pits Farmer Against Farmer

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Not all cows get to spend their days with soft green grass under hoof. For many, the picture isn't so pretty, according to the book Farmageddon. Justin Sullivan/Getty Images hide caption

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The drone in Potter's promotional video on Kickstarter. "Now I'm looking at other models (and a second drone) because some people have threatened to shoot it down," Potter says. via Kickstarter hide caption

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Free-range chickens lay eggs for Sauder's Quality Eggs in Pennsylvania. Dan Charles/NPR hide caption

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States Fight California's Chicken Cage Law. But It's Really About Bacon

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A screen grab from an undercover video released by the Humane Society of the U.S. shows a pig in a gestation crate at Iron Maiden Farms in Owensboro, Ky. Courtesy of The Humane Society of The United States hide caption

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Breeding sows in crates at a subsidiary of Smithfield Foods in 2010. The photo was shot by the Humane Society as part of an undercover investigation. Humane Society/Associated Press hide caption

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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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Cows wait to be milked at a California dairy farm. Justin Sullivan/Getty Images hide caption

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Breeding sows in crates at a subsidiary of Smithfield Foods in 2010. The photo was shot by the Humane Society as part of an undercover investigation. Humane Society/Associated Press hide caption

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