>> Meere wild schpeculation , but I just get this nagging suspicion the Berg was working for Al Qaeda, doing communications work in concert with his dad until he outlived his usefulness
Just connecting the dots <<
That's where I'm leaning. Berg became The Man Who Knew Too Much and al Qaeda probably figured he'd become less of a "friend" to them and more of a risk. The end.
Well, in the video (I only watched the first part) Nick doesn't seem afraid. In fact, he looks pretty darn relaxed which leads me to believe he THOUGHT he had nothing to fear from them.