Another Watch Dogs-related website, We Are Data, shows just how much publicly available data is out there if somebody knows where to look. We Are Data offers street-level information about the bytes and bits flowing across Berlin, Paris, and London. The site shows exact locations of current activity on Twitter, Foursquare, Instagram, and Flicker, open mobile lines, traffic lights, CCTV and ATM locations, and notable electromagnetic fields. Heck, it even shows the location of trains as they crawl along the rails.
Clicking on a Tweet icon and seeing specific tweets from a named individual sent from a specific location is downright eerie. We Are Data demonstrates how easily available that data is.