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The gap between technology and policymaking has gotten wider than ever with artificial intelligence, leaving a global policy vacuum as A.I. models rapidly advance.

The settlement, which also includes changes to the platform’s features, is the latest in a string of agreements by companies to address child addiction.

As Xi Jinping visits President Trump in Washington, the leaders are expected to discuss claims that China is surreptitiously copying American A.I. technologies, a process known as distillation.

Ezra Klein interviews the Nvidia chief executive Jensen Huang.

Meta’s C.E.O. talks for the first time about his style evolution.

The founder of the blood-testing start-up Theranos was sentenced to 11 years in prison for fraud and had been serving time at a minimum-security federal prison in Texas.

In each incident, the technology appeared to be conducting mundane data collection and resorted to hacking techniques to get it, researchers said.

Artificial intelligence again dominated the company’s annual developer conference, as Mark Zuckerberg doubled down on how the technology can empower people.

New Jersey officials said that the natural gas-powered generators, each the size of a tractor-trailer, were operating without permits.

As Xi Jinping visits President Trump in Washington, his country lags behind the United States on A.I. development in key areas — but Beijing has advantages elsewhere.