http://www.eweek.com/article2/0,1759,1774759,00.asp

Phishers and other online scammers are well ahead of law enforcement officials and security experts right now in terms of techniques and tactics, but the good guys are closing the gap and may be able to claim victory within as little as two or three years, people involved in the fight against phishing say.
As little as 2 or 3 years. How much will scammed by then?

The bulk of the work done in finding and arresting phishers falls to the United States Secret Service and the FBI, which share jurisdiction on electronic fraud. Both agencies have agents trained specifically for fighting online crime, but their personnel and monetary resources only go so far
I'm sure based on all the other things going on right now it must be hard for these groups to assign agents.