Airports are introducing robot janitors and thermal cameras amid the pandemic, while accelerating the adoption of biometric authentication (Courtney Linder/Popular Mechanics)

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Courtney Linder / Popular Mechanics:
Airports are introducing robot janitors and thermal cameras amid the pandemic, while accelerating the adoption of biometric authentication  —  On a normal operating day, Pittsburgh International Airport (PIT) sees an average of  —  coming through its gates.

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