Location analytics and the 'Minority Report' approach

How did you like that three-pack of tank tops you bought last time you were in?" Chief of PreCrime John Anderton is running from the law for a crime he has not committed yet. After a risky eye transplant in order to avoid the city-wide optical recognition system, he enters into a mall where his borrowed identity is immediately recognized and commercial adds and offers pop up on digital billboards based on his personal taste and past purchases. The reality is that we don't have to wait until 2054 for this legendary scene from the 2002 movie Minority Report to happen. Fortunately, we don't register people with optical recognition (yet!), but we can already track and identify individuals' position using the mobile phones we all carry -- and from that information make personalized offers. These are just a few examples of the many technologies available today.