the tank anecdote is also famously apocryphal. here&#x27;s a good analysis of the origin of that story: <a href="http:&#x2F;&#x2F;www.jefftk.com&#x2F;p&#x2F;detecting-tanks" rel="nofollow">http:&#x2F;&#x2F;www.jefftk.com&#x2F;p&#x2F;detecting-tanks</a>