The one thing you need to consider is that the head of the NAACP was present when Sherrod gave the speech. He was among those who applauded when she told about her racist actions, and he approved of her action.
The NAACP had the full video, yet Jealous did not bother to check the video before opening his mouth and condemning Sherrod.
The funny thing is that Breitbart was not aiming at Sherrod but at the reaction of her audience. Their reaction proved that they are the ones who are racist.
On the other hand the whole story is beginning to have legs. Perhaps the White House wanted Sherrod removed from her post before people woke up that she had successfully sued the administration as part of the Pigford cases.