As has been noted in the news, previous Secretaries of State have used personal email on occasion, but nobody has used it exclusively. For Mrs. Clinton to have never used her official email account seems unusual to me.

I'm reminded of the story on the IRS where Mrs. Lerner had discussed with co-workers the use of the internal messaging system and whether or not records were kept on those messages. I'm certain that these officials are doing a lot of business that isn't recorded. I'm sure there are phone calls, message systems, texts, letters, in-person meetings, etc. The point is when you are purposely trying to hide your communications from any public scrutiny, and at the same time putting classified information at risk, you are breaking the law.