"He'll come out of it in less than a minute."

"One can never be sure."

"There's still no reason why you can't use duplicate control systems."

"With a switch-off on the automatic, if they fail?"

"Yes. If for nothing more than to give a man a chance to save his own neck."

"They won't fail."

"The simplest things fail, Bannister. Campbell was killed in a far less elaborate way."

He looked at me. "Campbell? Oh, yes. The landing over the reef. I had nothing to do with that."

"You designed the power shut-off that failed."

"Improper servicing. A simple mechanical failure."