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The fiber optic cables that deliver your internet can also detect earthquakes

Seismographs are highly sensitive devices, and they do a good job of registering earthquakes at specific locations. But fiber optic cables — the data lines that delivered these words — can do much, much better....

Tapping the world’s fiber optic cables

Huge masses of data flash around the world along thousands of miles of fiber optic cables. They are regularly tapped – sometimes legally, mostly secretly. While this technology is simple, filtering is a huge challenge....