A controversial ad using footage from the 9/11 attacks on the US has been pulled by the agency. Carter Roberts, the WWF's US president, has said it was produced by an ad agency in Brazil and that he had no knowledge of the ad when it was released. He has also stated that he will try to have it removed from the internet entirely.

link to video:
 http://www.youtube.com/watch?v=-mxDPhVc9iM

and link to Carter Robert's response:
 http://www.youtube.com/watch?v=vurOieYe7OA