If they interviewed Berg at the conference, probably a lot. If Nick or Michael Berg were in cahoots with Moore, he could have interviewed Nick anywhere.
That's why I'm asking. You'd think so.
If they did not interview a "lot", then I have more questions. If they did, you can guess it was mere coincidence that Berg was interviewed--even though he was a one man band and not a big evil corporation, so how he managed to garner the attention of the crew is another guess.
I just thought of another question:
Was this conference referenced at all in Moore's final cut of the movie? (I know nobody here has seen it. I'm just proposing the question)
If so, what was the angle and tone of the presentation Moore gave it?
Just asking.