You're right; we won't. Say, for example, we identified a young girl from Ottawa, and we found that her father had identified images. I don't pretend to know the answer, but are there ways, are there things the ISPs could be doing to help law enforcement remove those photos? I think the Privacy Commissioner has a role in trying to answer those kinds of questions. I don't pretend to have those answers, but I think her office has the ability to try to shed some light.
You'll never remove all the photos. I don't pretend to be naive in that way.