No, because I think Wall St. is fairly safe from the NSA in at least three ways. First, they can hire the best defensive programmers (and probably do). Second, even if they get breached, the NSA can hire the best lawyers (including plenty of ex-NSA, ex-Justice Department folk) - so it can't be used against them legally. Third, the NSA and Wall St. are fundamentally on the same team, at a very deep level.