Here's the only information I could find on the Vatican website regarding bags:
And here's the info. regarding photography:
I found this all on the following link: http://mv.vatican.va/3_EN/pages/z-Info/MV_Info_Consigli.html
very helpful. thanks.
i'll have to see if my camera bag is smaller than these dimensions. given the various posts from several people around these "anti theft" bags, straps, etc - i will consider some of these. while not cheap, sounds like they help to reduce the risk of being a victim of pick pocket schemes and may be some money well spent for additional peace of mind.
also, anxiously waiting til monday to book some port excursions with disney.