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Associated Press
FILE - This Aug. 25, 2010, file photo shows one of the chicken confinement sites operated by Wright County Egg in Galt, Iowa. An Iowa State University scientist found evidence that sick hens at farms owned by DeCoster were “almost certainly” laying eggs contaminated with salmonella months before one of the nation’s largest outbreaks of food-borne illness came to light, newly released records show.  (AP Photo/Ryan J. Foley)

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