This letter is an excellent illustration of why good writing matters, and why bad writing can be disastrous.<p>The most important sentence in the letter (&quot;The result would be a catastrophe of the highest order - loss of human life.&quot;) is at the end of the third paragraph, and is effectively hidden by two paragraphs of dense, technical jargon that I, as a layman, cannot understand at all.<p>I honestly think that if he had just taken that sentence and moved it to the end of the first paragraph, 7 astronauts&#x27; lives could have been saved.