a) Forensics studies deal with how to retrieve "deleted" "unarchived"
data. So called "deleted" data is actually available.

b) Setup the system not to delete records belonging to users. Let
users keep their information saved for followup. Or at the very least
notify users beforehand.

Example. Title wrongfully deleted. Title replaced by 8 places Record
number, lower case letter with 7 numbers.

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My Lists > organize130808 ( 29 )
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Mark   Title   Author   Date Added
[_] Record b2491348 is not available 03-12-2013
[_] Record b2522793 is not available 03-12-2013

[_] Record b2926646 is not available 10-29-2011
[_] Record b2948837 is not available 10-25-2011