Toxic cloud in Buenos Aires under control

A toxic cloud that formed Thursday triggered a public scare that forced the evacuation of offices in Buenos Aires and the suspension of metro and train services in a tourist area.

Waymo chief says his tech would have averted fatal Uber crash

The CEO of Waymo, the Google subsidiary tasked with developing driverless cars, has said the recent death of a pedestrian in an accident involving an autonomous car would not have occurred with his company's technology.

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