It's mission creep. Law enforcement will always demand more power in pursuit of what they see as their goal of stopping the bad guys. Trampling all over innocent peoples' civil liberties is unfortunate to them, but they will never cease their pursuit for more power. Have you heard Ray Kelly's argument in defense of stop-and-frisk? "We do this to protect minorities! It's for their own good!" without any mention or even a passing courtesy to said minority's civil rights.

Actually, I can think of one area that probably won't be receiving all the extra scrutiny that the rest of us have been enjoying in new found police state, and that's Wall Street. Someone's gotta pay for all those toys cops have been buying lately.