R. Umar Abbasi subway photo: Google Glass, surveillance means more of this phenomenon. - Slate Magazine

Little Brother is burgeoning, too. More and more people are carrying cameras with them. Typically, these come in the form of mobile phones, but wearable cameras are growing in numbers and shrinking in size. Not too many years from now, lots of people will be wearing “heads-up” camera/display combos (such as Google Glass) that capture videos of pretty much everything they see. Unless we turn from the course we've set as a society, we'll soon arrive at a day when every square foot of every subway station—of just about every place, really—is being recorded at all times, and probably from multiple views. And all of these devices, capturing higher and higher resolution images plus audio, will be connected at high speeds to digital networks.