FBI's Petraeus/Broadwell email dragnet reveals agency's sweeping surveillance power

The FBI's dumpster-dive into Paula Broadwell's email archive has not yet revealed evidence of any crime, but it has revealed to America the extent to which our government is capable of collecting and surveilling our electronic communications.

Greg Miller and Ellen Nakashima in the Washington Post :

Many details surrounding the case remain unclear. The FBI declined to respond to a list of questions submitted by The Washington Post on its handling of personal information in the course of the Petraeus investigation. The bureau also declined to discuss even the broad guidelines for safeguarding the privacy of ordinary citizens whose e-mails might surface in similarly inadvertent fashion.