Mad Cow update

Bill would shield mad cow outbreak from Freedom of Information Act
http://www.unknownnews.org/0506140603madcowsecrets.html
"As the livestock industry sees it, it is providing information that will help protect the public health. In exchange for proprietary information about their herds, they believe they should receive confidence that their business records will not be shared with the public."

How can knowing if a cow is diseased be considered "proprietary" information? - Vox