Der Spiegel once was a somewhat lefty German weekly magazine. Recently it turned into a propaganda tool of the right. It has quite an influence, its sold circulation is over one million each week.

The increase of such quite ridiculous but effective propaganda like the above is the direct consequence of Mousavi's challenge of the state of Iran. He declared himself the winner in the election even before the vote count began. When the results were announced he alleged massive fraud without presenting any convincing evidence.
That again triggered big demonstrations of people who believed his allegations. When these non-rebellions turned into violent youth riots the state of Iran, like any other state on this planet would have done, asserted itself and suppressed them.
This again was a real gift for anti-Iran propagandists and their work will hurt Iran's image in the 'west' for a long time. When Iran's leaders are openly associated with bin-Laden in major publications Iran has lost the propaganda war.
I will not be surprised to see Mousavi punished for the obvious damage he has done to his country. But that would again only play right into the hand of the propagandists. Maybe he should be send off to some small town in the counryside where he can learn how the people living there really think. Give him a stern advice not to talk to the media and let him paint more pictures.