I would like to turn, if I could, to the assistant deputy minister of materiel, who's very familiar with the actual timelines. I do believe that the origins of the challenge were that based on the Leopard 1 model, as opposed to not exactly having done the research, and given the urgency, we made certain assumptions about the ability for the Leopard 2 to be retrofitted with the plows and the blades, and through the acquisition process came to the conclusion that this wasn't actually possible. We subsequently actually figured out how to do that ourselves.
I'd ask Dan Ross to make a comment on that, Mr. Chairman.