You upload photos to Facebook and the social media website gives you suggestions on who to tag. Is that your old roommate Javier on the fishing trip? Or maybe it's Craig, from accounting? And this photo in your feed, you weren't there when it was taken, but would you like to tag Lijuan anyway?
All that's possible through Facebook's fairly sophisticated biometric technology, which uses facial recognition software to scan members' faces and identify them in photos posted to the site. It's called "DeepFace" technology and, according to a putative class action in the Northern District of California, it's against the law. Or, at least, one law. In Illinois. And that's good enough for now, the court ruled last week, striking down Facebook's objections that its user agreement requires disputes to be resolved under California law.