Minnesota Public Radio slideshow:
Tracking livestock to prevent disease
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Vet student Tristan Malmedal thinks the animal ID system is a good idea. But he thinks there are still some unresolved problems with the plan. (MPR Photo/Lorna Benson)

Vet student Tristan Malmedal thinks the animal ID system is a good idea. But he thinks there are still some unresolved problems with the plan.

(MPR Photo/Lorna Benson)
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