As part of a social experiment, attendees at a hacker conference in July will be issued badges with electronic tracking devices. Large displays will show in real-time where people go, with whom they associate, for how long and how often.

Hopefully after seeing how easy it is to tag and track someone with RFID, people will become more aware of what a dangerous technology this could be if we don't pass strong privacy regulations to prevent their misuse.

(H/T to Slashdot for the link)