When Bob just wants to introduce himself and people say "You worked for the NSA? Go away, spy" -- that is a sign that effective social punishment of the NSA - the institution - is taking place. I see you worrying about the scenario where no amount of explanation Bob can give is enough to get him in the door. That's fine. But I'm arguing that Bob should have to do some explaining, and I'm arguing that if you do want the NSA - the institution - to suffer effective consequences, then you must accept that individual members will also face some gnarly consequence, because that's how institutions in a social context work. You cannot meaningfully punish the institution without also punishing its members. It does raise moral issues, yes - but if you have already decided, "we must punish the institution," then you fatally compromise that goal by adding a lily-livered "but let's not make things too hard for the members."