Most people inside porn already know about this I assume, but these are the few good articles I've seen on it.
http://www.law.com/jsp/article.jsp?id=1125318960389"When FBI supervisors in Miami met with new interim U.S. Attorney Alex Acosta last month, they wondered what the top enforcement priority for Acosta and Attorney General Alberto Gonzales would be.
Would it be terrorism? Organized crime? Narcotics trafficking? Immigration? Or maybe public corruption?
The agents were stunned to learn that a top prosecutorial priority of Acosta and the Department of Justice was none of the above. Instead, Acosta told them, it's obscenity. Not pornography involving children, but pornographic material featuring consenting adults. "
http://arstechnica.com/news.ars/post/20050923-5346.html"If content or expression is well within accepted community standards or it has intrinsic value, it does not constitute criminal obscenity. According to an electronic memo from FBI headquarters, established legal precedents indicate that conviction is most likely in cases where the content "includes bestiality, urination, defecation, as well as sadistic and masochistic behavior.""
Throat-fucking isn't well within accepted community standards is it? And, I sure hope beating girls with whips and making them cry isn't sadistic or masochistic.