When the 10-year electronic passport was created, we had to balance the program for a 10-year period. We used activity-based management criteria, as Ms. Desloges mentioned, to determine what the costs would be over 10 years.
In addition, we wanted the cost of the child passport to remain at 60% of the cost of a 5-year passport, while keeping the cost of the 10-year passport as low as possible. We know that the 10-year passport subsidizes the child ePassport, among other things. That is, roughly, how we arrived at the $160 cost.