Tech Gadgets That Know and Share Too Much About Us

Electronic devices that track our movements and convey the data can violate consumer privacy and set off public relations nightmares for tech vendors

Over the next decade, systems that track and record our movement through physical space will be woven inextricably into everyday life. Already we operate some location-based systems: dashboard navigation systems, smartphones with GPS features, and electronic tags that help us zip through toll stations. But in the coming years, location-aware tools will become more common, sophisticated, and indispensable.

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