I think there are a number of pieces to your question.
As I tried to indicate in the opening statement, the 36-year life was not our number. It was a number based on information National Defence was receiving from the joint strike fighter office. That information included 36 years' worth of sustainment costs. The life cycle of the aircraft is based on the total number of hours the aircraft is expected to be able to fly, which is 8,000 hours. You simply divide that by the number of hours they expect to fly the aircraft each year. You come up with the number. That was 36 years, and it wasn't our estimate. It was in the information.