Anthropic was the only AI company cleared for use in classified settings—until Elon Musk’s xAI agreed to let the Pentagon use its AI in lawful situations. Google and OpenAI are used in unclassified settings but are in talks with the Defense Department about classified work.
The British weren’t alone in their hunt. Chileans, New Zealanders, and South Africans, among others, were also scrambling to source this strategic substance. A few months after the Pearl Harbor attack, the U.S. War Production Board restricted American civilian use of agar in jellies, desserts, and laxatives so that the military could source a larger supply; it considered agar a “critical war material” alongside copper, nickel, and rubber.1 Only Nazi Germany could rest easy, relying on stocks from its ally Japan, where agar seaweed grew in abundance, shipped through the Indian Ocean by submarine.2
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