F.B.I. Seizes Web Servers, Knocking Sites Offline 
Pro-Tip – when you are using a CoLo for your servers:<p><pre><code>   * Make sure you failover to servers in a separate cabinet.
   * Better yet, make sure you failover to servers in a different data center.
   * Best Possible – Configure a task to switch your primary and 
     failover environment from data center to data center
     once a week at random times.  Or eliminate the concept of primary 
     and secondary altogether.
  </code></pre>
Who knows what others servers are located in the cabinet you are sharing.  The good news is your mitigation process also becomes a first class disaster recovery plan as well.