If anyone's interested, there's a front-page article:
"Tired of Prying Off Stickers? Tatooed Fruit is On the Way" by Julia Moskin, New York Times 7/19
The idea is to tag produce for identification and tracking with a laser tatoo. Apart from the fact that it sounds a bit creepy, it's interesting that the information would be coded and is to provide information to distributors, not to consumers.