Go ahead and buy an el-cheapo webcam and test the facial recognition software that is built-in. I challenge you to be able to reliably use that to recognize a f

Go ahead and buy an el-cheapo webcam and test the facial recognition software that is built-in. I challenge you to be able to reliably use that to recognize a face from a block of cheese. Sure, the high quality algorithms are out there. But no one actually sells the hardware with that stuff built into it, at least not at a price that any sleazy landlord is going to be paying.