Real questions difference between "classified" and "non-classified" emails

[Proud Public Servant]

2. I can provide some answers

First, to echo Bill, it depends on what your definition of "classified email" is.

See, there's classified email, and there's classified information. State, like many federal agencies, has a classified email system that is separate from its unclassified email system. Relatively few State offices have desktop availability of classified email, and only qualifying personnel have access to classified log-ons. There may well be classified BlackBerries -- I have a top secret clearance and a classified log-on and have I've never seen one, but that doesn't mean anything -- but they wouldn't interact with any other email system, including State's unclassified system. And it is literally impossible to send/forward email from the classified system to a non-classified one.

All that is by way of saying: no way was Hillary sending/receiving classified email on her server.

Now, that's different from sending classified information in an unclassified email. That, unfortunately, seems to happen with some regularity, because classified email systems aren't always available and high-ranking DC types are much, much too important top follow protocol if it inconveniences them. Can't tell you how often I've seen that.