Yeah, I'm sure Chad can weigh in on this one. Especially since he represented Sean Lockhart for awhile, didn't he? In the meantime, here's a good explanation of RICO:

http://en.wikipedia.org/wiki/Rackete...anizations_Act

I don't believe it's been used so far in the US in any porn-related prosecutions, though, although it may have been used in a big tax evasion prosecution last year involving a chain of adult stores in Texas.