UPDATE: Add the IRS to the list of federal agencies obtaining information from NSA surveillance. Reuters reports that the IRS got intelligence tips from DEA's secret unit (SOD) and were also told to cover up the source of that information by coming up with their own independent leads to recreate the information obtained from SOD. So that makes two levels of deception: SOD hiding the fact it got intelligence from the NSA and the IRS hiding the fact it got information from SOD. Even worse, there's a suggestion that the Justice Department (DOJ) "closely guards the information provided by SOD with strict oversight," shedding doubt into the effectiveness of DOJ earlier announced efforts to investigate the program.
A startling new Reuters story shows one of the biggest dangers of the surveillance state: the unquenchable thirst for access to the NSA's trove of information by other law enforcement agencies.
As the NSA scoops up phone records and other forms of electronic evidence while investigating national security and terrorism leads, they turn over "tips" to a division of the Drug Enforcement Agency ("DEA") known as the Special Operations Division ("SOD"). FISA surveillance was originally supposed to be used only in certain specific, authorized national security investigations, but information sharing rules implemented after 9/11 allows the NSA to hand over information to traditional domestic law-enforcement agencies, without any connection to terrorism or national security investigations.