When we talk about extended life to 2030, what's the state of the procurement decisions? When you talked about maybe a Canadian aircraft being developed—and I know there are some off-the-shelf options—where are we at on procurement? In 2014 it was estimated that the cost of replacement would be $3 billion to $5 billion, and we know how costs escalate. Can you give us an idea where we're at on the replacement question?
