http://www.democracynow.org/2008/7/25/m ... eveals_topIt doesn't have a thing to do with finding terrorists. It to assemble a database of "domestic enemies of the state". I'm pretty sure you are among the millions of Americans in that database. I wouldn't be so cavalier about it if I were you, Indy. No one is going to compile a list of enemies of the state and then do nothing with it. They may just monitor most of them for now but at some point something is going to be done with it.
Right now the US public is so far behind the curve in knowing what's going on there is no need for state violence to manage them, but if the Occupy protests ever become effective the US gov won't hesitate to decapitate the group by dispatching their leadership and any sympathizers in local government or law enforcement that gets in the way. They have their personal data in this database and will not be difficult.