Would you want technology and information powerhouses such as Facebook and Google trawling through your photos and using facial-recognition software to identify you? Well, like it or not, they already do.
You have to opt in to use Google's Find My Face feature, then the next time one of your friends uploads a photo that looks like you (they know it does because of your profile and other pictures), your name will be suggested as a tag.
Facebook, which has a history of introducing unpopular features and asking for permission later, has been automatically using facial recognition for more than a year without many users so much as blinking an eye.
The amount of personal data Facebook is gathering from its 901 million users, who upload 300 million photos a day, is phenomenal...