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Overview: Sam Altman unveils "dots," OpenAI's new AI personal agent

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On Saturday night, there were separate mass shootings near South Africa's two largest cities.

WATCH: Holiday airfare prices hit highest levels in a decade

Former special counsel Jack Smith testified before the Senate on Tuesday about the investigations he led into President Trump.

President Trump and the leaders of the country's largest artificial intelligence companies have signed a set of voluntary safety standards, as calls mount for tighter guardrails on powerful AI technology.

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police say five men were arrested on suspicion of preparation of a terrorist act after three vehicles were spotted near an air base the U.S.

Former 'American Idol' contestant found guilty of murdering wife

Trump weakens fuel efficiency standards.

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Investigators haven't concluded whether the incident was state-backed.

Former special counsel Jack Smith defended his handling of his investigations into President Trump during a Senate hearing that grew contentious at several points.

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