Catherine Crump: The small and surprisingly dangerous detail the police track about you

A very unsexy-sounding piece of technology could mean that the police know where you go, with whom, and when: the automatic license plate reader. These cameras are innocuously placed all across small-town America to catch known criminals, but as lawyer and TED Fellow Catherine Crump shows, the data they collect in aggregate could have disastrous consequences for everyone the world over. TEDTalks is a daily video podcast of the best talks and performances from the TED Conference, where the world’s leading t