How Underground Fiber Optics Spy on Humans Moving Above

When last spring’s lockdown quieted the Penn State campus and surrounding town of State College, a jury-rigged instrument was “listening.” A team of researchers from the university had tapped into an underground telecom fiber optic cable, which runs two and half miles across campus, and turned it into a kind of scientific surveillance device. By …

How Underground Fiber Optics Spy on Humans Moving Above Read More »