Lets see...why doesnt the vatican share.
The problem is pretty simple actually.
Lest we forget, all the secret documents are not in English...they are in Latin, Hebrew, and in some obscure language that you and I will never
I could win a trip to the vatican secret vault...but wouldnt know what the heck I was looking at when in there. I would have to take a scholar.
Now scholars are allowed in the secret vaults...but to transcribe books, etc.
The knowledge is hidden in public view...we cant understand what it says, Im sure they get a kick out of it!