Playing cat and mouse is different from ladder and wall.<p>To breach a wall, you have to construct a single ladder.<p>To protect against a ladder, you have to raise all of your walls.<p>This escalation is in fact the basis of al Qaeda&#x27;s anti-Western military strategy -- to engage in assymmetric warfare[1].<p>[1] <a href="https:&#x2F;&#x2F;en.wikipedia.org&#x2F;wiki&#x2F;Asymmetric_warfare" rel="nofollow">https:&#x2F;&#x2F;en.wikipedia.org&#x2F;wiki&#x2F;Asymmetric_warfare</a>