A US-based company, SignalTrace, is developing technology capable of tracking a wide range of signals emitted by devices. These include mobile phones, Bluetooth headphones, RFID tags, and even microchips used for animal identification. The technology’s stated purpose is signal tracing, but critics express concern over its potential for mass surveillance of US citizens. SignalTrace aims to monitor these signals to gather data on location and movement. The development raises privacy issues regarding the extent of data collection and potential misuse. The technology’s capabilities suggest a future where comprehensive tracking of individuals and their belongings could become commonplace. Concerns center on the lack of transparency and potential for abuse of such widespread surveillance capabilities.