&gt; But, at some point there must be trust.<p>We may <i>want</i> to reach a point where we trust things we use, but if we&#x27;re using a security-grade definition of trust and we&#x27;re honest with ourselves, I think every one of us would admit that we&#x27;re using something(s) that we do not trust.  There just isn&#x27;t enough time to properly review, test, and verifying things.