Meet the new robot dog patrolling LaGuardia Airport

Inside the slick new Terminal B at New York’s LaGuardia Airport, a headless robotic “dog” is beginning to patrol the floors. As bemused airport travelers watch from close by, the four-wheeled device rolls around baggage claim, where it’s been deployed for a demonstration. Its job: sniffing. Well, sort of. The robot is armed with air quality detectors that the airport team says help monitor the terminal for pollutants. This robot, along with two others, constitutes a fledgling automated...