I have a version of "facial recognition software" myself. Actually most of us have it.
My wife and I are retired. We travel quite a bit making lots of stops in various cities. I have been using my smart phone, getting real close to the subjects, and taking lots of candid photos and short videos of; 'witnesses' supposedly doing the infamous 'metropolitan cart' work. I later show them to my jw wife and other jw friends and innocently say something like, "is this really preaching, or I'm sure that this is not what Jesus had in mind". It's hard to defend some of these photos. lol
It's friggin' embarrassing (even to me) to 'witness' (pun intended) what these poor brothers and sisters are doing while "attending" these metal carts and call it preaching. I'm putting together a slide show to be released soon.
It's become really interesting and fun to observe this 'time wasting' endeavor. To me, it's much better than confronting these "carters" and trying trap them or to put them on the spot. Mostly, I feel sorry for them. Remember too, most of us were once in there shoes and would have stood naked on the sidewalk if the borg would have told us to do so!
just saying!
eyeuse2badub