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These highly trained pups help keep airports safe and secure

Highly trained dogs working for federal agencies at U.S. airports can sniff out anything from dangerous explosives to forbidden foreign produce.

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Highly trained dogs working for federal agencies at U.S. airports can sniff out anything from dangerous explosives to forbidden foreign produce.

In Boston, Bonna, a German short-haired pointer, is among 420 screening K-9s working for the U.S. Transportation Security Administration nationwide.

And Tomas, a 4-year-old beagle/cavalier King Charles spaniel mix, sniffs luggage from incoming overseas flights for the U.S. Customs and Border Protection.

"We find prohibited fruits, meats, plants and vegetables," said Edward Stack, with the U.S. Customs and Border Protection.

Watch the video above to learn more about this story.