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.

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.

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