I can understand FOX simply can't have vulgar language and middle fingers as part of a censorship situation, but that being said, the Diaz brothers seem like the absolute worst possible choice for network TV if that's the case.
To be fair, you usually can't hear Nate and he isn't as known for his hand gestures as his brother is.
While we are on the subject, did Shogun or Gus have an english speaking cornerman? They kept cutting audio out in that fight and all I could think was that they were censoring portugese or sweedish.
Edit: Just remembered the fight where Nate had the triangle and was flipping off everyone. So I guess I am wrong on that point.