&gt; I actually wonder why you don&#x27;t hear about power outages like this (not at CERN, but in regular cities) more frequently. Maybe public power supplies are more redundant?<p>Happens pretty frequently, they just don&#x27;t get reported beyond local news unless it affects something noteworthy. <a href="http:&#x2F;&#x2F;cybersquirrel1.com&#x2F;" rel="nofollow">http:&#x2F;&#x2F;cybersquirrel1.com&#x2F;</a> maps a lot of these &quot;Cyber Squirrel Operations&quot;.<p>Mainly squirrels, birds, raccoons, snakes, and rats.