# Tweet by [@keefmoon](http://twitter.com/keefmoon) on 2011-04-09 20:45:57 > [!INFO] Archived from [original tweet](http://twitter.com/keefmoon/status/56820166142595072) RT @robertmcmurrey: Just saw a kid with a qr code on the back of her shirt. New marketing or lost kid tracker?