Fifty years ago, during the Sino-Japanese War, rats carrying bubonic plague were dropped on China. Today, advances in genetic engineering make biological weapons even more deadly. Wendy Barnaby investigates.
Presenter Jenni Murray.
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Fifty years ago, during the Sino-Japanese War, rats carrying bubonic plague were dropped on China. Today, advances in genetic engineering make biological weapons even more deadly. Wendy Barnaby investigates.
Presenter Jenni Murray.