&gt; <i>Then it proceeds to the grammatical error of &quot;insure&quot; which almost made me stop reading</i><p>Let&#x27;s hope the management reading the letter wasn&#x27;t so fickle. Oh wait, hmmmmmm.<p>&gt; <i>The total loss of a future shuttle mission and the death of its crew is a near certainty with our current booster o-ring design.</i><p>From the point of view of the engineer, that would be a misrepresentation of the facts. An exaggeration.<p>You&#x27;re basically outlining the difference between engineers and marketers. I don&#x27;t mean that as a sleight - perhaps the situation called for a bit of &quot;marketing&quot;.