
DeepSeek AI raises national security concerns, U.S. officials say
CBSN
As Chinese AI application DeepSeek attracts hordes of American users, Trump administration officials, lawmakers and cybersecurity experts are expressing concern that the technology could pose a threat to U.S. national security.
DeepSeek's introduction in the U.S. on Monday saw it quickly become the most downloaded free application in the country on Apple's app store. The rollout also rocked Wall Street as investors struggled to compute the sudden appearance of a low-cost, open-source generative AI tool able to compete with leading artificial intelligence apps such as OpenAI's ChatGPT.
Shares of Nvidia, the U.S. manufacturer of advanced chips engineered for AI development, plummeted 17%, chopping roughly $600 billion off its market value — a record single-day drop for a U.S. stock.

The threat of tornadoes moved east into the Mississippi Valley and Deep South on Saturday, a day after a massive storm system moving across the country unleashed winds that damaged buildings, whipped up dust storms that caused deadly crashes and fanned more than 100 wildfires in several central states. Fatalities were reported in Missouri and Texas.

A Canadian woman who had appeared in an "American Pie" movie was detained for several days by U.S. immigration officials while attempting to cross the border from Mexico to the U.S. to renew her work visa, according to her mother. The woman's father expects his daughter to be able to return to Canada as early as Friday.

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