ESSAY
"Columbia: A Normal Accident?"
Categories
Excerpt (first and last two sentences)
"I would like 
to start by pointing out that at the time this report was constructed, knowledge 
of what actually happened to the Columbia space shuttle in the final minutes 
before its destruction is circumstantial.  Therefore, I will base my opinions 
and arguments on what data NASA has released to the public....
...He needs to look at a larger scale.  The fact that failure occurred 
despite 100% to prevent the tragedy occurring is enough proof to show that the 
mission was complex, and it had a Normal, complex system failure."