Carrie Underwood

I think it's okay to feel jealous, but it's how you deal with it that's the important thing. You have to be happy for your friends when they do well because you want them to do well. It's not a competition.

Companies selling a product play down its vulnerability and emphasize its robustness. But only after technology leaves the dock is it really tested. For human operators in control of a supposedly infallible system, complacency and overconfidence can take over, and caution may be thrown to the wind.