China’s Security State Sells an A.I. Dream

China’s new national drive to embrace artificial intelligence is also giving the authorities new ways to monitor and control its citizens.

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As Congress Debates Cutting Medicaid, a Major Study Shows It Saves Lives

The most extensive research on Medicaid coverage to date found that it reduced the risk of death by 21 percent.

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What Is a Bear Market? Are We in One?

A bear market occurs when stocks fall 20 percent from a recent peak. As global markets continue their meltdown, here’s what it means for your money and the economy.

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What Is a Bear Market? Are We in One?

A bear market occurs when stocks fall 20 percent from a recent peak. As global markets continue their meltdown, here’s what it means for your money and the economy.

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