I think we're there here.
Are searches for terrorists reasonable? There are two ways to do that: Rely upon government, OR rely upon the unorganized militia. Trump has shown no preferences for the latter when it has come to arresting illegal aliens. Yes, a uniform database IS more "efficient," but it is also an enormous power likely to be abused.
“Are searches for terrorists reasonable?”
Are searches for Conservatives, Christians, and Pro lifers terrorists reasonable?
Because that is what will come from this.