My advice to the FBI? Ignore him. That'll get his goat worse than anything.
If there is a chance that he has information they have to interview him.
First question: Do you have in your possession or have knowledge of a video of Nicholas Berg other than what has been released to the Arab press? The interview for Mr. Moore will be downhill from there.
Nope. How are we to know if the tape fat boy has has any bearing on the investigation without him releasing it to the authorities. If he refuses charge him with hindering an investigation, but I think he will roll over pretty quickly-fat boy would not do well in jail-and he has to know that this is a dangerous and serious game he is playing. Any publicity he gets is small potatoes compared to the win-win the tape is for the good guys; if Berg is pro-war it nullifies the lunatic ranting of his father, if he is anti-war it opens up speculation about how he came into contact with the terrorists. Either way, I'm serious about winning the war on terrorism and I'm not above using this tape to shore up the war effort.