Interesting link to an Arab site. Which was that Wolfgang? If you mean the link to the non-Arab "Tehran Times", so far as I can see the article is taken from an American source.

The business of Nick Berg being pulled in by the American authorities, then released and subsequently being picked up by the people who killed him - it has overtones of the kind of incident that happened in the Civil Rights struggle in the Deep South. The idea that there might at times be some kind of working collaboration between American agents and a freelance terrorist group is not something that can be ruled out. Odd alliances can occur - remember how, during the Iran-Iraq war, while the US was in most ways effectively backing Saddam's Iraq, there was Ollie North, off on the side arranging to supply Iran with weaponry in order to finance terrorists in Nicaragua.