We had a recent incident which was major as someone accidentally deleted 3 data data sources through library administration. Since all the refernces were broken and recreating the data source will change the underlying unique id, it was not easy to recover. It would be better 1. if we get an alert for such critical change 2. If there is an option to restrict delete access on the data sources 3. if we can recreate the data source but quickly recreating the links with all the info links without the unique id constraint.