Snoopy, the comic strip beagle, was always fighting the Red Baron.

U.S. agriculture has its own protector beagle—Lenox.

The rescued beagle has graduated from the U.S. Department of Agriculture's National Detector Dog Training Center in Newnan, Ga., and is now protecting the country's borders.

The USDA uses detector dogs to sniff out contraband fruits and vegetables in incoming cruise ships and international airline flights.

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