If the staff saw him stealing papers, why didn't they stop him? That is a good question that was asked on O'Reilly last night.
It will soon become a very common question from the Dem attack machine, so we'd better come up with a good answer.
My sister, who spent years as an archivist and librarian, answered this question for me last night: she said you have to remember that probably 99.9% of librarians are Dems. (This is so to such an extent that the ALA and their other professional associations are always trying to support Dem causes and candidates, regardless of the fact that this has nothing to do with library work.)
I would suspect that the staff wanted to avoid an "incident," but at the same time realized the criminal implications of letting him flat-out get away with it. Hence the tactful call to Lindsey. This not only gave Berger time to get whatever he wanted out of the papers, but clearly was intended to bury the whole thing while at the same time permitting the staff to say they took action.