Private topics?

Hello, I have been trying out the Python API for Freebase and exploring the service as a whole. It's a fantastic service. Fantastic resource for developers. Thank you! Here's my question: Is it possible to create private topics that are only available to a single user or several users? I ask because I am partnering with museums who, although they eventually want to get their licensed content into Freebase, are not yet ready to take that big a step. I would love to use Freebase as a storage facility for them, integrating it with other information systems, and later on it will be easy to open up the topics for public access and editing. I understand why philosophically and technically you would want to avoid "private" topics, however I also know it would add enormous value for those in my situation, who are trying to advocate the "opening up" of institutionalized content via services like Freebase. Otherwise, if you can suggest other ways of safeguarding or adding legal protection to topics , which might appeal to a museum, I would love to learn more. Thoughts appreciated. Jonah Model Designer/Developer jonah@nfold.org