Aljazeera.Net and Pravda’s English-language channel are among those reporting on doubts about the authenticity of the Berg execution video, among them:

• CIA claims it has identified the perpetrator as Zaqrawi
  
• flip-flopping claims of whether Zaqrawi had lost a leg in 2001
  
• the timing of the execution was a little too convenient — reports that it was in retaliation for the Abu Ghraib prison abuses neatly deflected media attention from the latter by making them pale in comparison [This was my suspicion immediately after the news broke as well. — FmH]
  
• “If al-Qaeda were in the business of avenging prison abuse, it would have already done it and probably on several occasions”, and probably would have reacted to Iraqi deaths in US custody rather than just ‘humiliations’
  
• the regulation prison jumpsuit that the victim in the videotape is wearing, which it is difficult to believe al Qaeda would issue
  
• the victim’s lack of resistance to being killed and the inconsistent lack of blood leaking from the freshly severed head; had the victim already been dead?