The article reported that The bureau now maintains a roster of 15,000 spies, some paid as much as $100,000 per case, many of them tasked with infiltrating Muslim communities in the United States."
The article also reported that FBI's defenders say the bureau must flush out terrorist sympathizers before they act. "What would you do?" asks one. "Wait for him to figure it out himself?"
If that is the case, why is the FBI not flushing out corrupt officials, thieves, and murderers before they act.