It will be said, however, that protection tends to destroy commerce, the civilizer of mankind. Directly the reverse, however, is the fact.
“I think the biggest challenge is to continue on the same path. I think it's easy to become complacent from the success you've had.”
“After the loss of Columbia a couple of years ago, I think we were reminded of the risk. All of us, though, have always known that the Space Shuttle is a very risky vehicle, much more risky than even flying airplanes in combat.”