I don't think it's necessarily a fear of sharing the data because of liability, but there are certainly lots of appropriate questions about data privacy.
I think individual data custodians, the individuals who hold the data, whether it's within hospitals, regions, provinces or agencies like emergency medical care systems, for example, are understandably and appropriately concerned with exporting their data without being assured that the data, which involves individual patient information, will be kept private. One of the concerns is privacy. Another concern is data interoperability.
A third concern, and not a concern but a limitation, is that data tends to be siloed within jurisdictions and we just don't have, today, the structures. It really needs to be an overarching structure, provincial or federal, in my opinion, that brings together all of these individual custodians and has them work together so that they trust each other with their data and the data can be federated in one location.
We know it's technically possible. The hurdles are jurisdictional and informatics-based.