Former defense secretary Donald Rumsfeld once described uncertainty as consisting of "known unknowns" and "unknown unknowns."  Many of Hillary's unknowns are well known.  Mystery continues to surround her past actions, from Whitewater and her cattle futures trading to the Benghazi fiasco and her private email server.  Each of these incidents was first covered up, then denied, and eventually explained away.  Insofar as innocence and virtue never need be covered up or explained away, many of us suspect misconduct.

Hillary herself might ask, What difference, at this point, does it make?  Her reputation does seem to be imperiling her path to the presidency.  But if she succeeds in reaching that goal, her past misdeeds will likely make little difference at all – except for those 30,000 "private" emails that she erased.  They might contain "unknown unknowns" that could make a great deal of difference, especially if Hillary Clinton becomes president.  

We don't know if Hillary's email system was hacked.  If it was, we don't know who hacked it (although the smart money is on Russia and China).  Lastly, we don't know what secrets might have been revealed to Hillary's possible hacker.  But here's something we do know.  Whatever was in those emails were things that Hillary wanted to hide from us.  Indeed, she considered it so important to keep those emails from us that she went to extraordinary lengths to hide them.  She "BleachBit" her server, and from that moment those 30,000 emails were forever hidden, even from the eyes of God, as one congressman put it.

So here's the problem.  Hillary didn't BleachBit her server until she had learned that Congress wanted to take a look at her emails, so if anyone had already hacked her server by that time…

One future day in a private meeting, President Hillary Clinton will state her intentions about a matter of some significance.  Then she may receive a cryptic comment from an emissary of a foreign power:

"Madame President, I don't think you want to do that."