Are airport sniffer dogs keeping flyers safe?

Many of the K9 imprinting techniques rely on a pseudo scent to train with. Unofficial assessments in the field have shown that these types of products may not be effective.

http://globalnews.ca/news/2942113/are-airport-sniffer-dogs-keeping-flyers-safe-many-fail-to-detect-explosives-reports-say/

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