The move, affecting about one-fifth of the National Science Foundation’s primary research budget, is the latest sign of how the White House is asserting more control over grants.

One of AI’s fiercest critics believes the doom talk is about founders making money, not saving humanity.

The men remain under investigation with “stringent conditions,” a British official said. The base, R.A.F. Fairford, is used by the United States in its war against Iran.

The increase comes four months after the chip giant added $80 billion to its buyback program, bringing the total remaining authorized amount to $235 billion.