While Edward Snowden has revealed a lot about the NSA's surveillance, our federal and local governments conduct a great deal of surveillance we still don't know about. We can begin to identify what that surveillance is by identifying the empty spaces - in criminal cases, in legislation, or timelines - where such surveillance must be. This talk will attempt to point to some of the black holes in our surveillance map, both ones we know exist and the places where one must exist. That's the first step in working collaboratively to expose that surveillance. More importantly, this talk will focus on how to see these black holes, and how people around the country can work together to make them visible again.