Do cows make you mad?

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Summary

A report on a frightening food scare that has far-reaching implications right down the food chain, stretching into the economy and beyond. What is 'mad cow disease' and how much do we really know a...

A report on a frightening food scare that has far-reaching implications right down the food chain, stretching into the economy and beyond. What is 'mad cow disease' and how much do we really know about BSE (bovine spongiform encephalopathy)?

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