RockDoctor writes "Northern Ireland has for decades been using sniffer dogs to detect bombs and bomb-making materials. According to the BBC, a dog trainer in the Province has trained two dogs to sniff out some of the chemicals used in the manufacture of optical discs. While this has an obvious risk of false positives (polycarbonate plastics and their associated plasticizer additives are used in many other industries, for example), it does seem to be effective at locating discs which are not declared in customs manifests, and doing so much faster than human inspection of the cargo can do."
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