Until proven otherwise, I am considering this conspiracy theory stuff right now.
Fox News report:
http://www.youtube.com/watch?v=Wr5r9UnIiT4
ABC News: (note: 2006)
http://abcnews.go.com/blogs/headlines/2006/12/can_you_hear_me/
techdirt:
http://www.techdirt.com/articles/20130723/12395923907/even-powering-down-cell-phone-cant-keep-nsa-tracking-its-location.shtml