Howlin, what is that around Berg's neck....looks like a little lock on a chain. Just curious (and eyes haven't awoken yet!).
Berg supposedly affected a somewhat military look, and in some pictures appears to be wearing a kind of dog tag. He was also, supposedly, a religious Jew who had grown up in a secular household but rediscovered Judaism, and had a prayer shawl and tefillim (the small box containing a scroll from Deuteronomy that Orthodox Jews wear on their heads or arms when praying).
However, I have also seen Middle Eastern jewelry consisting of a little box (about the size of the object in the picture) containing verses from the Koran.
Or it could be a tiny padlock. Just another mystery about Nick Berg.