Together with a hundredfold expansion of the FBI's use of "national security letters" to obtain communications and banking records, the secret NSA and Treasury programs have built unprecedented government databases of private transactions, most of them involving people who prove irrelevant to terrorism investigators.
The Washington Post and New York Times are reporting on a Bush administration initiative that has tapped into a vast global database of confidential financial transactions for nearly five years. Relying on a presidential emergency declaration made under the International Emergency Economic Powers, the administration has been surveilling the data from the SWIFT database, which links about 7,800 banks and brokerages and handles billions of transactions a year. From the article:The NYTimes goes on to say that the joint CIA-Treasury program has played a hidden role in domestic and foreign terrorism investigations since 2001 and helped in the capture of the most wanted Qaeda figure in Southeast Asia. Still, the access to large amounts of confidential data was highly unusual, and concerns were raised about legal and privacy issues.