I, for one, breathe a big sigh of relief knowing all audio communications/recordings are easily text searchable.
In other personal communication security related news, someone gave pager intercepts from 9/11 to Wikileaks. The more interesting part:
"someone, possibly not even a government, was routinely intercepting most (all?) of the pager data in lower Manhattan as far back as 2001. Who was doing it? For that purpose?"
Schneier on Security