There are reports that, among other things, Berger “inadvertently” requested that the rules be suspended for his visits to the archive and have monitors removed, so he could “inadvertently” have private phone conversations from the room in which the documents were held. I can’t imagine this is normal procedure.
But he also reportedly took many unescorted bathroom breaks while going over the documents. Perhaps he has a medical problem that would account for this, but one has to wonder if he also found a way to “inadvertently” dispose of inconvenient documents while not even having to leave the facility.