Nancy Gibbs

I'm sentimental about many things: the lumpy feel of a baby's unused feet, the metallic smell of the air before the first snow, the last scene in 'It's a Wonderful Life.' But Valentine's Day leaves me cold.

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.