I think it's probably a collective responsibility. I would argue that through the cabinet system we can provide more rigour in estimating the overall cost at the front end of a project; I think we can do a better job at that. I think the Treasury Board Secretariat can provide a better challenge function in estimating the costs. I won't go to the gun registry, because I think a lot of things happened there.
Government comes up with estimates, and they're always brought before Parliament to vote on. I think parliamentarians have a role, through the various committees, to challenge us on the various estimates that come before them. If we aren't providing the details, we should be doing it.