Data-Mining - not just for counterterrorism. “The IDW objective was to create a data warehouse that uses certain data elements to provide a single-access repository for information related to issues beyond counterterrorism to include counterintelligence, criminal and cyber investigations,” stated a formerly secret fiscal year 2008 budget request document. “These missions will be refined and expanded as these capabilities are folded into the NSAC.”
They're going to collect everything they can and use it to investigate everything they can. FBI’s Data-Mining System Sifts Airline, Hotel, Car-Rental Records | Threat Level | Wired.com | 
