Matthew Cole had an interesting talk a while back about how Italy was able to implicate the CIA in a kidnapping and identify several agents, using cell phone tracking technology provided by the US.
(Edit: Oops, Matthew Cole, not Jacob Appelbaum.)
(Edit: Oops, Matthew Cole, not Jacob Appelbaum.)
[0]http://gawker.com/5861484/iran-and-hezbollah-caught-all-the-...