There are two things. One, the contingency you're speaking of that was part of the budget is still there. There's still a $3 billion contingency fund built into the budget and that's just good financial planning. If you think about incidents like the Alberta floods or Lac-Mégantic, you're going to have things, and you don't know what they are, but they're going to drive expenses. That's the $3 billion and that is still there in the budget that was tabled for budget 2014.
From an estimates perspective, you don't actually build in contingency funds. You build in your best case scenario in terms of how much money you think you'll be able to spend. It's illegal to overspend, so it's important to plan for the best case or worst case scenario, depending on your perspective.
We've talked already this morning about infrastructure. The infrastructure agreements are complex and year after year they're never able to realize the extent of the agreements they forecast. You're seeing a more realistic look at what the infrastructure spending will look like.
You could make the same comment about National Defence spending. It's complex, capital in nature, and frequently, despite best intentions, spending doesn't come in as high as planned on those projects. There are delays.
We're trying to do a better job of forecasting actual spending, but it is a bit of a catch-22 because it is illegal to overspend. So if you're going to bump up against your limit—it is an up to amount—you do have to come back in and get parliamentary authority.
So we do have to find the right level.