South Korea Training Cloned Sniffer DogsKorean Customs Service on Thursday said it plans to use seven Labrador retrievers that were cloned from a skilled drug-sniffing dog to assist officials in tracking down explosives and narcotics at airports and harbors.<img src="http://feeds.foxnews.com/~r/foxnews/scitech/~4/276997907" height="1" width="1"/>
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