We are, or at least we used to be, a nation of moral ideals. In the past, our government has sometimes done an imperfect job of upholding those ideals. But never before have our leaders so utterly betrayed everything our nation stands for. “This government does not torture people,” declared former President Bush, but it did, and all the world knows it.

And the only way we can regain our moral compass, not just for the sake of our position in the world, but for the sake of our own national conscience, is to investigate how that happened, and, if necessary, to prosecute those responsible.