Personally, I've never had a problem flying. I believe in September 2001, more Americans died in automobile accidents than in terrorist attacks. And that was a very bad month for terrorist attacks, but a pretty normal month for car accidents.
9/11 notwithstanding, I'm still safer getting on a plane than I am driving to the airport.
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"The mind is not a vessel to be filled but a fire to be kindled."
-Plutarch