Also, I did not realize just how intricately NSA data is shared with the FBI (and who knows how many other agencies). From the article, it sounds like any FBI analyst can run an arbitrary query on the "to" and "from" fields of email addresses, at any time, as many times as desired. So effectively the FBI has one giant inbox with Americans' communications in it?
That inbox will get hacked. It's only a matter of time. If thousands of federal bureaucrats have access to it, I would be very surprised if foreign intelligence agencies do not already have access to it in some capacity.
Scary stuff. People should continue to assume all systems are compromised and email is public information.