I'm with you all the way on your points so far. I think at this point it will be important to refer to a specific product, one that's available to landlords. I

I'm with you all the way on your points so far. I think at this point it will be important to refer to a specific product, one that's available to landlords. I think in the minds of commenters there is an idealised version of "face recognition", so in a way, everyone is arguing past each other.