We spent decades preparing for another 9/11. Another attack may look totally different

The U.S. faces vulnerabilities in its GPS infrastructure as adversaries develop capabilities to spoof and jam signals. Department of Defense officials have assessed potential daily economic costs at $1 billion from disruptions to GPS-dependent systems. GPS is used in telecommunications, power grid operations, financial transactions, and transportation infrastructure. The vulnerabilities exist across both military and civilian applications of the technology.

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