digital v. paper
the thing with paper records was that, even though it was so much more costly to produce and retain, once it was done, it was done in quite a few copies, and yes, those copies could have been, and have been and are being shredded and otherwise disposed of. But, this also involves cost. And, ironically, while electronic records are cheap and easy to create and maintain, they're equally cheap and easy to erase. And, with the avalanche of new data, previous records ARE being erased, never mind an accident or purposeful "eraser weapon" that goes bad.