There seem to be two kinds of objections. One is that it would be undignified. Here’s how to think about that: we have a situation in which a terrorist may be about to walk into a crowded room and threaten to blow up a bomb he’s holding. It turns out, however, that the Secret Service has figured out a way to disarm this maniac — a way that for some reason will require that the Secretary of the Treasury briefly wear a clown suit. (My fictional plotting skills have let me down, but there has to be some way to work this in). And the response of the nervous Nellies is, “My god, we can’t dress the secretary up as a clown!” Even when it will make him a hero who saves the day?