Overall, as a class, they will not be shuttle astronauts. They will be space station astronauts, testing and flying whatever is the new exploration vehicle.

We're not seeing tanks floating down the rivers. We're not seeing tanks cracked open.

We're getting into contact with people. We're trying to take a head count.

All I can tell you is it that it will have an impact. But how much of an impact, we just don't know yet. We're in the early stages of trying to figure all that out.

We know there is going to be a schedule impact, ... We don't know what that's going to be yet.

The program is being logical and looking at what can be done.