This has probably been posted already but this is too important to ignore.
GENEVA, N.Y. - The United States did not properly analyze two suspected cases of mad cow disease in 1997, years before it showed up in Canada and devastated this country's beef industry, a CBC News investigation suggests.
Dr. Masuo Doi, the U.S. Department of Agriculture veterinarian who initially investigated both 1997 cases, says he is haunted by fears that the right tests were not done and that his own department did not properly investigate whether the cow had BSE.
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Documents obtained by CBC show that the samples tested by the department did not contain parts of the animal's brain critical for an accurate diagnosis.
The U.S. Department of Agriculture is refusing to talk about the cases, saying the documents provided to CBC speak for themselves.
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The scientists' comments raise new questions about how the U.S. industry has been able to essentially escape BSE when Canada's much smaller industry, observing almost identical safety and testing practices, has had four cases in the past two years.
http://www.cbc.ca/story/canada/national/2005/04/12/usbse050412.html