Exactly. We're working with a firm that's done costing work with our allies as well, so that we're benefiting from the global experience to enhance our costing. We have a very robust in-house large team, probably the largest costing team within the federal government. We're using outside experts and consultants who have worked in that field to draw on their knowledge, their costing experience with some of our closest allies, and getting information as well from other countries. All of that is now going in.
In some of our major platforms, we've also built in third-party challenge functions. Defence will do the costing, and then we're bringing in outside experts to challenge, review that costing, so the minister is getting an assurance that the work is done well. We're really trying to improve our costing. We invested a lot of money to do that, because we think it's absolutely critical.