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The article discusses advances in tunnel boring technology and their potential applications for underground infrastructure. A new plasma-based machine successfully drilled through granite in California, promising faster and more efficient tunneling to support underground power, data, and transportation systems. Increased demand for undergrounding is driven by security concerns and geopolitical tensions, with examples including underground data centers, submarine cables, and critical facilities. However, high costs and technical challenges limit widespread adoption, with underground infrastructure becoming a strategic option for protection and resilience.
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