As the 20th anniversary of the 9/11 attacks approaches, VOA's Julie Taboh looks at the special canine teams deployed over the past 20 years that have helped keep U.S. airports safe.
Produced by: Julie Taboh and Adam Greenbaum
Use of Canine Units Expands in US Airports to Thwart Possible Terror Attacks
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Use of Canine Units Expands in US Airports to Thwart Possible Terror Attacks