There&#x27;s a similar story about putting armor on planes during WWII - <a href="http:&#x2F;&#x2F;www.johndcook.com&#x2F;blog&#x2F;2008&#x2F;01&#x2F;21&#x2F;selection-bias-and-bombers&#x2F;" rel="nofollow">http:&#x2F;&#x2F;www.johndcook.com&#x2F;blog&#x2F;2008&#x2F;01&#x2F;21&#x2F;selection-bias-and-...</a>