Where you were, where you are, and where you're going next

Location tracking of phones is out of control. Here’s how to fight back.

You likely have never heard of Babel Street or Location X, but chances are good that they know a lot about you and anyone else you know who keeps a phone nearby around the clock.

Sometimes its useful for you — like when making a 911 call, for example, or plotting a route on a map.  

Other times it's just useful for them,