After examining some 2,500 pages of documents obtained through the Freedom of Information Act (FoIA) the folks at the Electronic Frontier Foundation (EFF) have released a report showing widespread violations by the FBI in the years following 9/11.
The report suggests that civil liberty violations are far more widespread that was previously thought.
• Evidence of delays of 2.5 years, on average, between the occurrence of a violation and its eventual reporting to the Intelligence Oversight Board
• Reports of serious misconduct by FBI agents including lying in declarations to courts, using improper evidence to obtain grand jury subpoenas, and accessing password-protected files without a warrant
• Indications that the FBI may have committed upwards of 40,000 possible intelligence violations in the 9 years since 9/11
You can download a PDF copy of the report here