 And if they can replicate the problem, then they know how to handle it down the road. They can fire the jets in a different way with the spacecraft, perhaps slightly different orientation, and that problem goes away. But they're trying to figure that out right now as we speak. So, Bill, I know nothing. That sounds like a complicated problem. I mean, is this a problem that's kind of like, well, this is regular business, or this is something that's a significant safety concern?