No, no, you miss the point! Libraries cannot now and never have been able to tell anyone what books you've read! What you have checked out now, yes. What you own money on, yes. But it is NOT possible to provide a list to ANYONE, even yourself, of everything you've read or checked out in the past. Libraries don't have the time, staff or money for such. Besides, they always have and always will continue to cooperate with law enforcement (or anyone else) with a warrant or court order for the records.