I have one quick operational point.
What we're talking about here is a better understanding of the pattern of communications, essentially. Through regulations, we'll work through the specific details of the types of metadata we'd be capturing. Generally speaking, from our perspective, the reason we would be doing that is to establish patterns of communication, in a warranted way, to be a building block for an investigation. Obviously, there are many other elements, but that's the sort of pattern we'd be looking for on our side.