Your question has two parts: first about costs and second, from Public Accounts, about the amount of a little more than $1 billion.
If I may, I will deal with the cost management system first.
Costs have changed over time. It is important to understand that our process includes two major stages, planning and execution. Planning is what allows us to consider evolving needs and translate them into renovations to a building. In recent years, there have been changes of direction in the requirements we have to deal with. It bears saying that this project began around 1997. It had been in the works since 1991, but I am talking about the West Block itself. The deterioration has increased over time, exponentially so every two or three years, especially the masonry. So the associated costs increase as well.
In addition, changes were made to the Building Code, especially in regard to earthquakes. There are more requirements in that area. So each time we do renovations, we have to make sure that we meet the requirements.
Since 2001, there have been a lot of changes in security rules. Events like those in 2001, among others, mean that we have to increase the level of security. There are new requirements for parliamentarians. It all drives up the costs.