The exercise regimes are extremely important. You have the domain awareness. You're looking out to try to anticipate if there's going to be a problem or a crisis. Obviously, that's a little bit of what Christian was talking about, queueing the resources, so if you have a sense that there's a ship that's floundering or something that's coming in that's going to create a problem, and actually having those relationships in place so you can pick up the phone, or do whatever it is immediately to get the assets where they are required. That's exercised on a pretty regular basis.
There's no substitute for sort of 24-7 coverage everywhere, but it's the most practical way of—