Going round in circles
Ships around the world are reporting false locations, seeming to circle Point Reyes near San Francisco when they are actually thousands of miles away. Nobody knows exactly what is happening, how or why. The evidence points to the spread of a new technology that manipulates satellite navigation signals. Given how much everyone now relies on satnav, this may have serious implications.
The anomalies were picked up by Bjorn Bergman of the environmental non-profits SkyTruth and Global Fishing Watch, who was exploring an historical database of Automatic Identification System (AIS) data provided by commercial satellite networks.
All vessels are legally required to
