very nice post, a short thought for Walmart - - Year 2000 RFID, now what year did Walmart start to offer flu shots to its customers? Used to be if you wanted a flu shot you went to a real clinic, not a grocery store. Size of RFID's are a lot smaller now.
Just something for people to think about next time they get a flu shot at a grocery store.
Huh? I recall getting flu shots and vaccinations from places like McDonald's when I was little. This was outside of US and nobody thought anything different.
@enforcer48 you were flagged by a worthless gang of trolls, so, I gave you an upvote to counteract it! Enjoy!!