There is a mystery unfolding in the U.S. Department of the Interior. Officials there seem to have removed the United States from a singularly successful anti-corruption effort. This has happened largely in secret, aside from a few public statements in legalese that are nearly impossible to parse. At times, bureaucrats in the department have behaved in ways that—it’s hard to think of another word—seem un-American, literally silencing dissent in open forums and abruptly cutting off contact with the public.