[Cryptography] [cryptography] Help investigate cell phone snooping by police nationwide

[dan at geer.org]

[lots of cross posting, as per original]

Stipulating that I'm not in any conceivable sense the last word on
this topic, you might find some of this

  Tradeoffs in Cyber Security
  Dan Geer, 9 October 13, UNCC
  http://geer.tinho.net/geer.uncc.9x13.txt

relevant.  If short on reading time, scan down to "Marcia Hofmann."

--dan