What was actionable: The 150+ Emails containing classified information that were on her unclassified private server. Each email constitutes a count of either failure to protect/negligent mishandling or intentional security compromise. Both charges are felonies, the first though has no requirement of Intent. Each count is worth 5 to 10 years in Prison and $10,000 or higher fine. How is that for actionable and quantifiable "what"?
Everybody entrusted with classified information is held to the same legal standards, many a lessor person has faced decades in Jail for such a crimes. She could get lucky and be charged with the negligent mishandling charges for all the emails she sent. (she is not liable for emails sent to her that might have contained such info, but then the FBI should be going after whoever sent those to her), but as Classified information, is stored on physically separate networks and machines, the act of transferring the data, especially the Top Secret info that was on some of the emails, is a deliberate act so she should face the slightly more severe deliberate security compromise charges.