Once again, Cory Doctoriw has the right idea about rights.
Related to this, I saw a particularly frightening article that the Crown (as we like to call government here in Canada) might not be able to back your privacy rights, because they weren't nice when negotiating treaties, and that the land rights might need to revert back to the descendants of the originals. Imagine that, you did everything in good faith, toiled your whole life and the Crown says 'oopsies' as you are escorted off your front lawn.
I don't think it will ever get to this, but always a remote possibility.