What I would say—and the Auditor General has noted this repeatedly—is that this program of transformation was largely unknown in terms of costs, although there were some international comparators. We're well in line, by the way, with international modernization programs.
The estimate grew as the complexity was unveiled—as essentially we got under the hood and understood exactly what would happen when we started to try to modernize a system. Many of these systems have bolted-on parts and a different kind of coding, and they are very complex systems. The original estimate grew as the complexity of the transformation was discovered.
The Auditor General said in her 2023 report that she thought we had underestimated it and that it wasn't surprising that it was going to cost more. In fact, she said that it was essential that we move forward with the modernization and had been calling for modernization since 2010 for the very risks that I outlined in terms of a collapsing system.