Most discussions of facial recognition technology contemplate a world in which people walk the streets and drive the roads under the watchful eyes of government surveillance cameras. Those cameras will tag and track those who fail to hide their features, recording their movements for future reference.
But what if one day facial recognition tech becomes so cheap and portable that it can be built into wearable devices? You wouldn't know if somebody calling your name at a bar was an old friend or a con artist working a scam after linking your face to searchable online personal information. That day is now, courtesy of two Harvard University undergrads.
