“A fast-growing FBI data-mining system billed as a tool for hunting terrorists is being used in hacker and domestic criminal investigations, and now contains tens of thousands of records from private corporate databases, including car-rental companies, large hotel chains and at least one national department store, declassified documents obtained by Wired.com show. Headquartered in Crystal City, Virginia, just outside Washington, the FBI’s National Security Branch Analysis Center (NSAC) maintains a hodgepodge of data sets packed with more than 1.5 billion government and private-sector records about citizens and foreigners, the documents show, bringing the government closer than ever to implementing the “Total Information Awareness” system first dreamed up by the Pentagon in the days following the Sept. 11 attacks.”