Don’t panic: Companies want to use your facial expressions to sell you more products

As the ancient Roman orator Cicero once put it, “The face is the index of the soul.” In 2017, our faces are more index.html than index — thanks to new face-reading software that can do everything from uncover your secret emotions to unearth your location, and even predict what you will do next.

Nearly 250 million video surveillance cameras have been installed throughout the world, industry researcher IHS Insight estimated, and the global video surveillance market revenue is estimated to triple over a seven-year period, increasing to $42 billion in 2020 from $14 billion in 2013, according to industry predictions. Add to that surreptitious recording technology like drone cameras, Google Glass, Snapchat video glasses.

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