If Herridge did not have backups and hard copies of her material associated with that stuff then she’s not smart enough to be operating in this environment...
If she was/is REALLY good, then she not only has backup, but her digital files are set to self destruct upon X cycles of access attempts/tampering.
You have missed the whole point of my post. People who risked their careers and maybe their lives to supply Herridge with privileged sensitive information will head for the bushes and Herridge will have difficulty recruiting new productive sources. She may even find her own person in jeopardy.
See how this FBI confidential source that added credibility to the House impeachment enquiry, Smirnov, is now under arrest by the FBI and facing prosecution - ostensibly for perjury... all to discredit the House impeachment project. The 'enemy' is using our treasured offices and institutions to threaten and control us.
CBS has obediently set about to ruin Herridge's life. Under these circumstances, I can't see how backup copies are of any value at all - except maybe by the secret police.