Most of the tech on display at this year's Border Security Expo was autonomous and AI-equipped, driven by the Trump administration's focus on US border security (Elizabeth Findell/Wall Street Journal)

Elizabeth Findell / Wall Street Journal : Most of the tech on display at this year's Border Security Expo was autonomous and AI-equipped, driven by the Trump administration's focus on US border security —  Rapid gains in artificial-intelligence technology bring new competitors into the business of securing the border

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