It is true that our fleet, particularly our large vessel fleet, is aging. I will note that our small vessel fleet has a much lower average age and is of much less concern.
We're looking in particular at the icebreaking fleet, for example, where the average age is creeping up pretty high. I'll say that on the one hand we build Coast Guard vessels to a high standard, so they do tend to last longer than what you see in the commercial world, and that's intentional. We put them through their paces. Icebreaking is a much more difficult task, as you can imagine, than moving cargo, but we build them to last.
In terms of the second part of your question about the longer term for the fleet, my team is currently developing the fleet renewal plan. We do that on a five-year cycle, and we have a 2017 complete renewal plan that will be due out. We're certainly working with the yards within the NSPS to maximize the time they'll have available to build ships as we move to later stages.