When I started work for the State of Oregon in 1998, part of the incoming indoctrination was a presentation about computers.  After discussing the Oregon Public Records Law, we were all told:  "Do not put anything on the computer that you don't want to see above the fold in the Oregonian."  (There were still big thick newspapers back then.) 

When I was first granted a Security Clearance, part of the three-hour interview and briefing was to point out all the bad things that could happen to my country and to me personally if I revealed Classified information.  

Everyone involved at the DNC (two Congresswomen in charge), Podesta, and Hillary have all had the same briefings or the equivalent.  

Arrogance, hubris and stupidity were the main ingredients for this bit of political theater.