It might seem like nightmare scenario. A terrorist organization or nefarious nation state decides to derail the global internet by faulting the undersea fiber optic cables that connect the world. These cables, which run along the ocean floor, carry almost all transoceanic digital communication, allowing you to send a Facebook message to a friend in Dubai, or receive an email from your cousin in Australia.

US Navy officials have warned for years that it would be devastating if Russia, which been repeatedly caught snooping near cables, were to attack them. The UK’s most senior military officer said in December that it would “immediately and potentially catastrophically” impact the economy were Russia to fault the lines. NATO is now planning to resurrect a Cold War-era command post in part to monitor Russian cable activity in the North Atlantic.

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