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The big story

Chris Miller, author of the book "Chip War," warned three years ago that the balance of modern power hinges on a semiconductor supply chain crossing geopolitical fault lines. Now, the Tufts University historian is raising a new concern: the U.S. risks losing its advantage over China in artificial intelligence talent.

When it comes to brain power, "America's edge is deteriorating dangerously," Miller told a U.S. Senate Foreign Relations subcommittee last week. It's a lead that's " fragile and much smaller " than its advantage in AI chips, he said.

Carnegie Endowment researchers ec

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