Actually, sir, I beg to differ. The costing you did goes back to the 2008-09 budget, when you said the costing was $25 billion. Clearly in 2008-09 you knew it was $25 billion. In 2010 you came out with a new costing.
How did $25 billion get to $15 billion, sir? In light of the fact that you had asked for $25 billion as a costing estimate, a full life-cycle cost...and kudos for doing it right in 2008-09. So how did you get it so wrong after the fact, when you dropped it to $15 billion from $25 billion?