What? I've used Glass, there is no "record light". It is perfectly possible, without hacks or nefarious programming, to take pictures and record video without a

What? I've used Glass, there is no "record light". It is perfectly possible, without hacks or nefarious programming, to take pictures and record video without any outward indication of activity. Savvy people could try to spot Glass being used by looking for the subtle glow when the HUD screen turns on, but that's a very far cry from an actual "activity light".