Since 9/11 sniffer dogs are increasingly used in the name of crime fighting and security. The canine sense of smell is a thousand times stronger than ours. Sue Broom finds out how they are trained. Show more
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Since 9/11 sniffer dogs are increasingly used in the name of crime fighting and security. The canine sense of smell is a thousand times stronger than ours. Sue Broom finds out how they are trained. Show more
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