This is going to cost Buffett a lot of credibility if Goldman comes out looking bad (and I don't think the SEC would make this move unless they have what they need to follow through).
"if Goldman comes out looking bad"
Aside from this cult followers claiming that, I only see a one of the most successful businessman in the world. One could equally have a psychopathic, dishonest, thief as the most successful businessman in the world.
I guess, I would be more convinced of his "integrity" if he actually criticized GS or Moody's, while he still holds large investments in those firms.