I'm not a Hillary fan. Really, I'm not. Still - let's look at this objectively.
The two criticisms about Hillary's email server:
1) Not secure enough for the sensitive State Department emails it carried.
2) Wiped with extreme prejudice before any so-called "good guys" could look at it.
Now ... if the servers DID contain sensitive data that mustn't be leaked, wouldn't it be a GOOD thing to wipe them thoroughly when they were no longer to be used?
What's more, if that data actually WAS leaked - then even melting the hard drives to slag would do nothing to un-leak it. If those emails ARE "in the wild" then they CAN still be recovered. If they WEREN'T leaked - then concerns about the server's security were unfounded.
What's more, every email has, after all, both a sender and a recipient. If Hillary was the ONLY one using a non-government-approved device, then copies of her emails should all be preserved on the devices of the people with whom she corresponded, no?
Lastly: everyone who reads Slashdot knows **perfectly** well that hard-drive scrubbers are widely available, inexpensive, and ROUTINELY used to purge the contents of media whose "secrets" are no more sinister than the original user's credit card numbers and their nude selfies. I never discard media without doing a multi-pass wipe; reading any meaning into the specific software used for the wipe is REALLY reaching.