You're a genius!!! How does it work, anyway? Kinda like "The Think System"?
Even though you're probably just trolling, Deb, I'll answer your question anyway. Remember that FBI agent who wondered why so many Middle-Eastern men were enrolled in flight schools? Intuition, Deb. Something a database will never give you. And remember what happened to her intitiution? It was squelched by middle-level bureaucracy layers in the FBI. Can't offend folks, you know.
That's just one example of street-level smarts being smothered. Likewise, the cops on the street during the DC sniper investigation were apparently doing their job - there were several entries in the sniper database for the Caprice in question. But either no one came up with a query to pull hits on license plates in excess of two occurences (which would remove most of the random background incidents and provide a workable investigative list, instead of just stopping every white van), or no one wanted to see that data, because, in the words of a police source, they were looking for a "white van with white people." Lack of intuition, so you had an investigation driven by bias instead.
Couple these events with a failure to adhere to immigration guidelines (most of the 9/11 hijackers should have been denied visas but the guidelines were overrridden, and Malvo should have been deported), and the immediate problem becomes clear - the feds simply aren't using the tools at hand, nor using the laws they already have. More laws and more tools will not change that fundamental problem.