Pam Fessler, NPR /
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The government spends hundreds of millions of dollars a year on equipment to detect explosives, chemicals, illegal drugs and other things someone might try to sneak across the border or into a building.
But some people think a more low-tech method -- canine detection teams -- can be just as reliable.
Many of the government's detector dogs are trained at a sprawling facility in Front Royal, Va. Pam Fessler reports from the Customs and Border Protection center.
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