It's a fair question, I suppose. I have no answer.
But it makes me think of an interesting experiment. How about people getting together to film two whites beating up a black, while other whites watch. Then post that to Youtube.
I bet it would get on the news.
(And I wouldn't be surprised if James O'Keefe is working on such a film right now.)
What concerns me is that there are those who will take this video as a reason to foment more violence against people of different race or creed. We need to stand back, ask questions and demand answers. In short, we need to keep cool heads and not jump into something that may have been designed to instigate violence.
As long as it was totally acting and fake, this would be an EXCELLENT experiment.