This certainly doesn't bode well for the FBI's credibility: On Wednesday, the agency's director Robert Mueller told Congress that he was unaware of exactly how many active FBI agents cheated on a crucial test on the bureau's policies for conducting surveillance on Americans. Some agents, in direct violation of testing rules that stipulate the exam should be taken alone, took the exam together, and according to some officials various agents finished the long and time-consuming exam in a curiously short amount of time. The Justice Department inspector general is investigating the scope of the cheating, which could be in the hundreds. "I've got a general idea, but I do not know how many," Mueller told Congress. "[T]here may be persons in a particular office where it was widespread and may be attributable to a lack of understanding and confusion about the procedures."