I don't think he was a CIA spy per se, but it might be possible he was acting as a double agent --- thus the so-called refusal to leave when asked to do so by the FBI, etc.
And, just a wild thought, was it really Nick Berg in the video? That is a really wild thought, but....
YOU HIT ON SOMETHING, WAS IT NICK BERG IN THAT VIDEO...we have another hostage over there....from Ohio???? don't we??
I wondered at the pics of Nick Berg in Philadelphia and the video...I thought they didn't look same...you are only other person to trigger my original suspician....who was the hostage from Ohio, and did we get him back??