What we've done is incorporate our launch abort system into the sidewall of the vehicle. That does a bunch of things for you. Now, if you're having a good day, you don't have to rely on a mechanical event to go right in order to stay safe. That necessity has been eliminated. At the same time you carry these rockets with you and bring them back, so you don't have to throw them away. And since you carry them with you all the way through, you can conduct a powered abort anytime, all the way to orbit. So we've decreased cost and increased safety all in one stroke. That's what you want to do.