I think all of us certainly believed the statistics, which said that probably 88 percent chance of mission success and maybe 96 percent chance of survival. And we were willing to take those odds. But we wanted to be sure that if there were any failures in the machine that the man was going to be there to take over. And to correct it. And I think that still is true of this business — which is basically research and development — that you probably spend more time in planning and training and designing for things to go wrong, and how you cope with them, than you do for things to go right.