Algorithms are only going to become more ubiquitous in the coming years. We must demand that systems that hold algorithms accountable become ubiquitous as well. Let’s start building a framework now to hold algorithms accountable for the long term. Let’s base it on evidence that the algorithms are legal, fair, and grounded in fact. And let’s keep evolving what those things mean, depending on the context. It will be a group effort, and we’ll need as many lawyers and philosophers as engineers, but we can do it if we focus our efforts. We can’t afford to do otherwise.