Authors:

If you use a cell phone - as I do - your wireless carrier likely has records about your physical movements going back months, if not years.

"How Privacy Has Become an Antitrust Issue" by Al Franken, www.huffingtonpost.com. March 20, 2012.
If you use a cell phone - as I do - your wireless carrier likely has records about your physical movements going back months, if not years.