Wayne Pacelle blog, "A Humane Nation," president of the Humane Society of the United States, on the Humane Society of the United States website:
Excerpts:

"With tens of thousands of people involved in dogfighting, in hundreds of communities, it is impossible for us and law enforcement to arrest or scare off all of the perpretators. We have to prevent them from getting involved in the first place, and build community support for our position. That's why we have added our community-based programs to our portfolio of anti-dogfighting activities.

"I personally am thrilled whenever a dogfighter turns around, just like I am when a trophy hunter lays down his weapon or a bullfighter puts down his cape to join our side. I have to think that many of the ex-dogfighters we work with may have some self-interested motivations in getting involved. But we give them a chance to demonstrate an actual, on-the-ground commitment to our (and other) programs and then we make our judgements. It's the same with Michael Vick."

.............."If Michael Vick doesn't fulfill his pledge to combat dogfighting, we'll be the first to call attention to that. But if he does come through, and he turns some kids around and helps animals, then I'll be the first to say that's a good thing."

Pacell, HSUS
(Scroll far down)

As stated by Wayne Pacell, Vick is just one of tens of thousands. Prosecutions just drive the problem further underground as people and communities involved close ranks.
Education, social pressure and example are the only cure.

The lynch mob mentality of some posters here serves no purpose.