Bluetooth Big Brother uses mobiles and laptops to track thousands of Britons Last updated at 12:04pm on 21.07.08 Thousands of people in Bath are unaware their movements may have been tracked through their bluetooth mobiles Thousands of Britons' movements have been covertly tracked by scanners placed in streets, pubs and offices for a technology experiment. The Cityware project run by the University of Bath has secretly placed scanners around the Somerset city, with the first 10 installed 2006. The scanners pick up bluetooth radio signals transmitted from mobile phones and laptops. In a scene reminiscent of the Will Smith...