public function Controller_Dismiss($Sender) {
      $Arguments = $Sender->RequestArgs;
      if (sizeof($Arguments) != 2) return;
      list($Controller, $EncodedURL) = $Arguments;
      
      $URL = base64_decode(str_replace('-','=',$EncodedURL));
      
      Gdn::SQL()->Delete('Flag',array(
         'ForeignURL'      => $URL
      ));
      
      $this->Controller_Index($Sender);
   }