Anonymous Rocked by News That Top Hacker Snitched to Feds

"On the heels of 25 arrests of Spanish-speaking anons last week, Anonymous was rocked Tuesday by the news that Hector Xavier Monsegur, the legal name of prominent antisec known as Sabu, has been cooperating with the FBI to hunt down other anon hackers from Lulzsec and Antisec."
 
Also check out Wired's coverage of the Anonymous-WikiLeaks relationship in the Stratfor affair. Interesting read!