The Salt
Originally published on Tue June 4, 2013 8:54 am
When you pick up a cut of beef at the store, would you like to know that animal's life history? The technology to do this does exist — at least in Michigan, where the state requires all cattle to carry electronic ear tags. It's the only state that requires such tags.
Michigan's cattle-tracking system was forced on farmers because of a crisis. Fifteen years ago, cattle in part of the state started catching tuberculosis from wild deer.
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