The fact that the "c" exists shows they were most likely copying classified material, moving it to an unclass system, stripping the classification markings at pasting it into emails.
Corrolating verbatim chunks of emails on Clinton's server to classified documents would be a damning bit of evidence.
51 posted on 06/10/2016 6:46:37 PM PDT by USNBandit
(Sarcasm engaged at all times)